Easy Vegetarian Rice And Bean Casserole Recipe

I love how this rice and bean casserole turns pantry staples into a bubbly, golden dinner that tastes far more indulgent than it is. One scoop and it is clear why this easy vegetarian favorite never lasts long.

I’m obsessed with this Easy Vegetarian Rice and Bean Casserole because it tastes big without acting fussy. I love the way black beans make it hearty, while diced tomatoes keep every bite juicy and bright.

It’s the kind of dinner I crave when I want something filling, bold, and actually satisfying without a pile of extra work waiting for me. And the leftovers?

Honestly, I look forward to them. But what really gets me is the texture: tender, saucy, a little cheesy, with those baked edges that I always steal first.

Simple stuff. Huge payoff.

Every single time, it hits.

Ingredients

• Long grain rice keeps it cozy, filling, and not too mushy.
• Vegetable broth gives the rice way more flavor than plain water.
• Black beans bring protein, fiber, and that hearty “real meal” vibe.
• Diced tomatoes add saucy goodness and a little tangy brightness.
• Corn adds sweet pops, which honestly make every bite better.
• Onion and bell pepper bring soft crunch, color, and weeknight comfort.
• Garlic makes the whole casserole smell like you tried harder.
• Cumin, chili powder, and smoked paprika keep it warm and slightly smoky.
• Cheese melts on top because, let’s be real, casseroles need it.
• Plus cilantro, lime, and sour cream make it fresh, creamy, and fun.

Ingredient Quantities

• 1 cup uncooked long grain white rice
• 2 cups vegetable broth
• 1 can (15 oz) black beans, drained and rinsed
• 1 can (14.5 oz) diced tomatoes, undrained
• 1 cup frozen corn, thawed
• 1 medium onion, diced
• 1 medium bell pepper, diced
• 2 cloves garlic, minced
• 2 tablespoons olive oil
• 1 teaspoon ground cumin
• 1 teaspoon chili powder
• 1/2 teaspoon smoked paprika
• 1/2 teaspoon kosher salt, or to taste
• 1/4 teaspoon ground black pepper
• 1 cup shredded cheddar or Mexican blend cheese
• 1/4 cup chopped fresh cilantro, optional
• 1 tablespoon lime juice, optional
• 1/2 cup sour cream or plain Greek yogurt, optional for serving

How to Make this

1. Preheat oven to 375°F (190°C). Lightly oil a 9×13-inch baking dish or similar size.

2. In a large skillet, heat 2 tablespoons olive oil over medium heat. Add diced onion and bell pepper and sauté until softened, about 5 minutes.

3. Add minced garlic, 1 teaspoon ground cumin, 1 teaspoon chili powder, 1/2 teaspoon smoked paprika, 1/2 teaspoon kosher salt, and 1/4 teaspoon black pepper to the skillet; cook, stirring, 1 minute until fragrant.

4. Stir in 1 cup uncooked long grain white rice to coat with the spiced oil and vegetables, cooking 1 to 2 minutes.

5. Transfer the rice and vegetable mixture to the prepared baking dish. Pour in 2 cups vegetable broth and 1 can (1
4.5 oz) diced tomatoes with their juices; stir to combine.

6. Add 1 can (15 oz) drained and rinsed black beans and 1 cup thawed frozen corn, folding gently to distribute evenly.

7. Cover the baking dish tightly with foil and bake for 30 to 35 minutes, or until rice is tender and liquid is absorbed.

8. Remove foil and sprinkle 1 cup shredded cheddar or Mexican blend cheese evenly over the top. Return to oven and bake uncovered 5 to 7 minutes, or until cheese is melted and bubbly.

9. Let the casserole rest 5 minutes, then fluff gently with a fork. Stir in 1 tablespoon lime juice if using.

10. Serve topped with 1/4 cup chopped fresh cilantro and optional dollops of 1/2 cup sour cream or plain Greek yogurt. Adjust salt and pepper to taste.

Equipment Needed

1. 9×13-inch baking dish (or similar size)
2. Large skillet or frying pan
3. Cutting board and chef knife
4. Measuring cups and measuring spoons
5. Wooden spoon or heatproof spatula
6. Can opener and colander or mesh strainer
7. Mixing bowl
8. Aluminum foil
9. Fork for fluffing and serving
10. Oven mitts

FAQ

Easy Vegetarian Rice And Bean Casserole Recipe Substitutions and Variations

• Rice: substitute with 1 cup brown rice (increase liquid and bake time), 1 cup quinoa (use 1 3/4 cups broth, shorter cook), or 3 cups riced cauliflower (no additional broth, add later to absorb flavors)
• Black beans: substitute with pinto beans, cooked chickpeas, or cooked green lentils for a firmer texture
• Diced tomatoes: substitute with 14.5 oz fire roasted diced tomatoes, 1 cup salsa, or 1 cup crushed tomatoes plus a splash of water
• Cheddar cheese: substitute with Monterey Jack, pepper jack for heat, or a plant based shredded cheese for a vegan option

Pro Tips

1. Sear the rice briefly in the spiced oil until it smells toasty before baking. That little toasting step adds a nutty depth and helps the grains stay separate instead of turning mushy.

2. Use low-sodium vegetable broth and adjust salt at the end. Canned tomatoes and beans can add more salt than you expect, so finishing with a taste test keeps the dish balanced.

3. If you want brighter texture and color, fold half the corn and beans in before baking and save the rest to stir in after baking. The post-bake additions keep some items crisp and poppy.

4. Let it rest, covered, for 5 to 10 minutes before fluffing. The steam finishes the rice gently and makes it easier to fluff without breaking grains.

5. Customize the finish for contrast: squeeze extra lime juice and add a sprinkle of fresh cilantro or a dollop of yogurt at the table for a fresh, tangy lift that cuts through the cheese.