The aroma of Italian herbs wafts through my kitchen, instantly transporting me to a cozy pizzeria, making it hard to resist the urge to whip up my Delicious Vegetarian Pizza Casserole with White Beans and Rice. This recipe seamlessly combines the nostalgic flavors of pizza into a warm, comforting dish that’s an absolute crowd-pleaser. What I love most about this casserole is not only how quick it is to prepare—perfect for those busy weeknights—but also that it’s nutritious and satisfying, thanks to its blend of protein-packed white beans and hearty rice. Each scoop is a delightful reminder of the joy homemade meals bring, wrapping you in creamy goodness with every bite. So, are you ready to take a slice of this pizza-inspired comfort food? Let’s dive into the recipe!

Why is this casserole irresistible?
Comforting: The Delicious Vegetarian Pizza Casserole brings together all your favorite pizza flavors in a warm, satisfying dish that’s perfect for any occasion.
Nutrient-Packed: Bursting with protein-rich white beans and wholesome rice, this casserole ensures you’re not compromising on health while indulging in comfort food.
Versatile: You can easily customize ingredients—add spinach or zucchini for extra nutrition or swap in quinoa for a unique twist!
Effortless: This one-pan meal saves you time on clean-up, making it a perfect choice for busy weeknights. Pair it with a refreshing salad or some Garlic Bread for a full feast!
Crowd-Pleasing: Whether serving a family dinner or hosting friends, this dish will have everyone coming back for seconds. Each bite is a fulfilling reminiscence of your favorite pizza night, guaranteed to warm hearts and bellies alike!
Delicious Vegetarian Pizza Casserole Ingredients
For the Base
- Rice – provides structure and heartiness. Use vegetable broth for added flavor.
- White Beans – adds creaminess and protein, making the dish filling; chickpeas can be a great substitute.
For the Vegetables
- Olive Oil – ideal for sautéing vegetables and adding richness; avocado oil can work as a substitution.
- Onion – offers a sweet, aromatic foundation; choose yellow or red onions for the best flavor.
- Red Bell Pepper – contributes sweetness and vibrant color; try green bell peppers for a sharper taste.
- Mushrooms – provides umami and a hearty texture; cremini or portobello mushrooms are excellent choices.
- Garlic – enhances flavor significantly; fresh garlic is preferred, but garlic powder is useful in a pinch.
- Diced Tomatoes – adds moisture and acidity; fresh tomatoes can substitute if you prefer.
For the Seasoning
- Oregano – a classic pizza herb that enhances Mediterranean flavors; Italian seasoning works as a substitute if needed.
- Basil – fresh basil is ideal, but dried basil can also be used effectively.
- Crushed Red Pepper – adds a kick of heat; feel free to omit for a milder dish.
- Salt and Black Pepper – essential for balancing flavors across the dish.
For the Toppings
- Shredded Mozzarella – this cheese melts beautifully to create a creamy top layer; consider vegan cheese for a dairy-free option.
- Parmesan Cheese – offers a salty, nutty flavor when grated on top; nutritional yeast is a great vegan-friendly alternative.
- Black Olives – optional but adds an extra layer of flavor; they make a great garnish too!
- Fresh Parsley/Basil – brightens the dish and adds freshness as a garnish.
This Delicious Vegetarian Pizza Casserole with White Beans and Rice is not only simple to prepare but also a delightful way to gather loved ones around the table.
Step‑by‑Step Instructions for Delicious Vegetarian Pizza Casserole with White Beans and Rice
Step 1: Preheat the Oven
Begin by preheating your oven to 375°F (190°C). This ensures that your Delicious Vegetarian Pizza Casserole will bake evenly and thoroughly, resulting in that perfect gooey cheese topping. While the oven heats up, gather your ingredients for a smooth cooking process.
Step 2: Cook the Rice
In a medium saucepan, cook 1 cup of rice in vegetable broth according to the package instructions. Typically, this takes about 15-20 minutes, depending on the type of rice. Once cooked, fluff the rice with a fork and set it aside. This delicious base will complement the casserole beautifully.
Step 3: Sauté the Vegetables
In a large skillet, heat 2 tablespoons of olive oil over medium heat. Add the diced onion, red bell pepper, and chopped mushrooms. Sauté for 5-6 minutes until the vegetables soften and the onion becomes translucent. Stir occasionally to ensure even cooking, creating a flavorful foundation for your casserole.
Step 4: Add Garlic and Seasonings
Next, stir in 3 minced garlic cloves and cook for an additional minute, allowing the garlic to release its fragrant aroma. Add the drained white beans, canned diced tomatoes, oregano, basil, crushed red pepper, salt, and black pepper. Simmer the mixture for 3-4 minutes, allowing the flavors to meld perfectly.
Step 5: Combine Rice and Vegetable Mixture
In a large mixing bowl, combine the cooked rice with the sautéed vegetable and bean mixture. Use a spatula to gently fold the ingredients until everything is well incorporated. This hearty blend now forms the flavorful core of your Delicious Vegetarian Pizza Casserole.
Step 6: Prepare the Baking Dish
Grease a 9×13-inch baking dish with a little olive oil to prevent sticking. Carefully transfer the rice and vegetable mixture into the prepared dish, smoothing the top evenly with your spatula. This ensures the casserole bakes uniformly, making every bite delicious.
Step 7: Add Toppings
Sprinkle 1 ½ cups of shredded mozzarella cheese and ¼ cup of grated Parmesan cheese over the top of the casserole. If desired, sprinkle with some sliced black olives for added flavor. The cheese will melt and create a beautiful, bubbling crust while baking, enticing everyone with its aroma.
Step 8: Bake the Casserole
Place the baking dish in the preheated oven and bake uncovered for 20-25 minutes. Keep an eye on it—once the cheese is melted and bubbly with a light golden brown color, you’ll know your Delicious Vegetarian Pizza Casserole is ready to be enjoyed.
Step 9: Garnish and Serve
After baking, remove the casserole from the oven and let it cool for a few minutes. To finish, garnish with freshly chopped parsley or basil for a pop of color and freshness. This adds a delightful touch before serving, making the dish as appealing as it is delicious.

What to Serve with Delicious Vegetarian Pizza Casserole with White Beans and Rice
Savoring a warm, hearty casserole is best when complemented by delightful side dishes and flavors that uplift every bite.
- Crisp Green Salad: A mix of fresh greens, cherry tomatoes, and cucumbers adds a refreshing crunch. The light vinaigrette balances the richness of the casserole beautifully.
- Garlic Bread: This buttery, garlicky treat brings a comforting and familiar Italian flair, perfect for scooping up every cheesy morsel.
- Roasted Vegetables: A medley of seasonal veggies adds vibrant colors and flavors, enhancing the overall nutrient content of your meal. They offer an earthy, caramelized contrast to your casserole.
- Homemade Caesar Salad: The creamy dressing and crunchy croutons round out your meal, creating a satisfying bite alongside the comforting casserole.
- Stuffed Mushrooms: These savory bites filled with cheese and herbs echo the casserole’s flavors, making it a delightful appetizer or side that’s sure to impress.
- Italian Red Wine: A glass of Chianti or Sangiovese complements the Italian-inspired dish nicely, deepening the dining experience with every sip.
- Fruit Sorbet: A light and refreshing dessert, this provides a sweet, palate-cleansing finish after the rich flavors of the casserole.
- Caprese Skewers: Mozzarella, basil, and tomatoes drizzled with balsamic glaze create a vibrant, fresh option that echoes the casserole’s flavors wonderfully.
- Herbed Quinoa: Quinoa tossed with fresh parsley and lemon juice adds a nutty flavor and a protein boost, rounding out the meal’s nutritional profile.
Make Ahead Options
These Delicious Vegetarian Pizza Casserole with White Beans and Rice are perfect for meal prep enthusiasts! You can prepare the entire casserole up to 24 hours in advance. Simply cook the rice, sauté the vegetables, and mix everything together, then transfer it to your baking dish. Cover tightly with plastic wrap or foil and refrigerate. When you’re ready to serve, uncover and bake the casserole straight from the fridge for 25-30 minutes or until bubbly and hot, ensuring it stays delicious and satisfying. For optimal quality, consider warming the ingredients to room temperature before baking to allow for even cooking. Enjoy the time-saving benefits of meal prep without sacrificing flavor!
Tips for the Best Vegetarian Pizza Casserole
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Use Quality Broth: Opt for high-quality vegetable broth when cooking your rice to enhance the flavor of your Delicious Vegetarian Pizza Casserole and avoid blandness.
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Don’t Overcrowd the Skillet: Sauté vegetables in batches if necessary; overcrowding can lead to steaming rather than browning, which affects flavor and texture.
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Texture Matters: Avoid overcooking the mushrooms to retain their meaty texture; you want them tender but not mushy in your casserole.
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Cheesy Finish: For an extra bubbly crust, broil the casserole for the last 2-3 minutes; just keep a close watch to prevent burning.
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Prep Ahead: Make it a make-ahead meal! Assemble the casserole a day in advance, keep it covered in the fridge, and bake it just before serving.
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Look for Substitutes: Feel free to swap in chickpeas instead of white beans or use quinoa in place of rice for a unique flavor twist while keeping it a delicious vegetarian dish.
Delicious Vegetarian Pizza Casserole Variations
Feel free to explore these delightful twists to make the Delicious Vegetarian Pizza Casserole with White Beans and Rice truly yours!
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Extra Veggie Boost: Add chopped spinach or zucchini for a nutritious and colorful upgrade. These vegetables blend beautifully and enhance the dish’s texture.
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Quinoa Base: Swap rice for quinoa for a nuttier flavor and a protein-packed twist. Quinoa cooks quickly and works perfectly with the casserole’s other ingredients.
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Dairy-Free Delight: Omit cheese or use your favorite vegan cheese alternatives to keep it dairy-free. It’s a great way to enjoy the casserole while accommodating dietary preferences.
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Smoky Flavor: Incorporate smoked paprika into the vegetable mix for a hint of smokiness. It makes a fantastic addition that adds depth to the overall flavor profile.
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Mushroom Medley: Experiment with a blend of different mushrooms, like shiitake and oyster, for varied textures and enhanced umami flavor. The dish becomes even more hearty and satisfying.
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Pantry Staples: Use canned artichoke hearts or sun-dried tomatoes for extra flavor. They bring a unique burst of taste that complements the overall pizza-inspired experience.
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Herbal Infusion: Mix in fresh thyme or rosemary alongside the basil and oregano. These herbs add a new aromatic dimension, enriching the overall flavor.
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Spicy Kick: If you love heat, add jalapeños or a sprinkle of cayenne pepper for an extra layer of warmth. Adjust this to your ideal spice level and enjoy the punch!
Embrace your creativity! For more delicious inspiration, check out my Cobbler Dinner Casserole or explore the cozy flavors in my Spicy Southern Casserole. Happy cooking!
How to Store and Freeze Delicious Vegetarian Pizza Casserole
Fridge: Store any leftovers in an airtight container for up to 4 days. This casserole actually tastes even better the next day as the flavors meld!
Freezer: For longer storage, wrap the casserole tightly in plastic wrap and then in aluminum foil, freezing for up to 2 months. Label it with the date for easy tracking.
Reheating: When ready to enjoy, simply thaw in the fridge overnight. Reheat in a preheated oven at 350°F (175°C) until heated through, about 20-30 minutes. Alternatively, microwave individual portions until hot.
Airtight Tips: Ensure your containers are airtight to maintain freshness and prevent freezer burn, protecting the lovely flavors of your Delicious Vegetarian Pizza Casserole.

Delicious Vegetarian Pizza Casserole with White Beans and Rice Recipe FAQs
How do I select ripe vegetables for this casserole?
Absolutely! When choosing vegetables, look for vibrant colors and firmness. For bell peppers, avoid ones with dark spots or blemishes. Mushrooms should be firm and dry, not slimy. Fresh garlic should smell robust and be plump. Ultimately, fresher ingredients yield a tastier casserole!
How should I store leftover casserole?
Very simple! Store any leftovers in an airtight container in the fridge for up to 4 days. I often find that it tastes even better the next day, as the spices have more time to mingle. Just make sure to allow it to cool completely before sealing it up!
Can I freeze this casserole?
Absolutely! To freeze, wrap the casserole tightly in plastic wrap (or store it in a freezer-safe container) to prevent freezer burn, and then cover it with aluminum foil. It can last in the freezer for up to 2 months. When ready to enjoy, thaw it overnight in the fridge!
What if my casserole comes out too dry?
If your casserole seems too dry after baking, it might be due to overcooking or an insufficient amount of moisture. To avoid this, ensure you’re using enough broth while cooking the rice and not skimping on the diced tomatoes. A quick tip: add a splash of vegetable broth when reheating to restore moisture!
Is this casserole suitable for those with allergies?
Definitely! This Delicious Vegetarian Pizza Casserole is inherently vegetarian and can be made gluten-free by using certified gluten-free rice and broth. Always check the labels on your ingredients thoroughly, especially for dairy-free needs if allergens are a concern. Feel free to replace the cheese with vegan alternatives for a completely dairy-free option!

Delicious Vegetarian Pizza Casserole with Hearty White Beans
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C).
- Cook 1 cup of rice in vegetable broth according to package instructions, about 15-20 minutes.
- In a large skillet, heat 2 tablespoons of olive oil over medium heat. Sauté onion, bell pepper, and mushrooms for 5-6 minutes.
- Stir in 3 minced garlic cloves and cook for 1 minute. Add white beans, diced tomatoes, oregano, basil, crushed red pepper, salt, and black pepper. Simmer for 3-4 minutes.
- Combine cooked rice with the sautéed vegetable and bean mixture in a large bowl and mix well.
- Grease a 9x13-inch baking dish and transfer the rice and vegetable mixture into it.
- Sprinkle with 1.5 cups of shredded mozzarella and 0.25 cup of grated Parmesan cheese. Optionally add sliced black olives.
- Bake uncovered for 20-25 minutes until the cheese is melted and bubbly.
- Remove from oven, let cool for a few minutes, and garnish with freshly chopped parsley or basil before serving.

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