Rice and Bean Casserole Recipe: Baked Tex-Mex Flavor in One Dish

This baked casserole delivers Tex-Mex flavor in a single dish, combining rice, beans, and spices for a hearty meal. The oven transforms simple ingredients into a satisfying, one-pan dinner that’s both filling and flavorful.

Perfect for busy weeknights, this dish comes together with minimal effort and bakes to tender perfection. It’s naturally vegan but can easily be adapted with cheese or meat for added richness.

Ingredients for Rice and Bean Casserole

Transform simple pantry staples into a vibrant one-pan dinner with these essential ingredients.

The rice and beans form the heart of this dish. Long-grain white rice holds up best to baking, while black beans and kidney beans provide a hearty texture. Look for low-sodium vegetable broth to control the seasoning—Imagine or Pacific Foods are reliable brands. For the tomatoes, fire-roasted diced tomatoes add a smoky depth that elevates the Tex-Mex profile.

For substitutions, pinto beans can replace either bean variety without issue. If you lack chili powder, use a blend of ground cayenne, oregano, and cumin at equal parts. Frozen corn works as well as fresh (no need to thaw). For a gluten-free version, ensure your chili powder and cumin are certified gluten-free. The bell pepper can be swapped for poblano peppers for extra heat.

Store uncooked rice in an airtight container for up to 1 year. Canned beans and tomatoes keep for 2-3 years in a cool pantry. Once baked, the casserole holds in the fridge for 4-5 days or can be frozen for 3 months with minimal texture loss.

Step-by-Step Instructions for Rice and Bean Casserole

This method ensures perfectly seasoned, hearty layers with minimal hands-on time.

Step 1: Sauté Aromatics and Build Flavor Base

Heat the 2 tbsp extra-virgin olive oil in a large skillet or Dutch oven over medium heat. Add the finely diced yellow onion and green bell pepper, cooking for 5-6 minutes until softened and just beginning to develop golden edges.

Add the minced 3 cloves garlic cloves and cook for 30-45 seconds until fragrant, stirring constantly to prevent burning. Stir in the 2 tbsp tomato paste, 1.5 tbsp chili powder, 1 tsp ground cumin, and 1 tsp smoked paprika, cooking for 1 minute to deepen the flavors.

Step 2: Combine All Ingredients for Baking

In a large mixing bowl, combine the uncooked 1.5 cups long-grain white rice, drained 2 cans black beans, drained 1 can red kidney beans, undrained 1 can diced tomatoes, and 1 cup corn kernels. This mixture forms the hearty base of the casserole.

Pour in the 2 cups vegetable broth and the sautéed vegetable mixture from Step 1. Add the 1 tsp sea salt and stir thoroughly to distribute all ingredients evenly. The liquid should just cover the rice mixture—add a splash more broth if needed.

Step 3: Bake Until Rice Is Tender and Top Is Golden

Transfer the mixture to a greased 9×13-inch baking dish or similar oven-safe vessel. Spread the mixture evenly and press down lightly to ensure the rice is submerged in liquid. Cover tightly with aluminum foil to trap steam.

Bake in a preheated 375°F oven for 45 minutes. Then, remove the foil and continue baking for an additional 15-20 minutes until the rice is tender, the liquid is absorbed, and the top develops a light golden crust. The casserole is done when the rice offers no resistance when pierced with a fork.

Step 4: Rest and Serve for Optimal Texture

Remove the casserole from the oven and let it rest, uncovered, for 10 minutes. This allows the residual steam to finish cooking the rice and lets the flavors meld together. The texture will transition from loose to perfectly set during this time.

Gently fluff the top layer with a fork before serving. Each portion should showcase the distinct textures of tender rice, creamy beans, and the concentrated flavor of the baked vegetables. Serve warm with optional garnishes like fresh cilantro or a squeeze of lime.

Essential Equipment for Perfect Results

Baking Dish

A 9×13-inch baking dish is ideal for even cooking. I prefer stoneware for heat retention, but glass works too. Ensure it’s at least 2 inches deep to accommodate all ingredients. 💪

Skillet or Dutch Oven

Use a large skillet or Dutch oven (like Lodge or Le Creuset) for sautéing vegetables. A 12-inch skillet provides enough room to stir comfortably without spilling.

Mixing Bowl

A large mixing bowl (at least 4-quart capacity) makes combining ingredients effortless. I recommend stainless steel for durability and easy cleaning.

Wooden Spoon

A sturdy wooden spoon prevents scratching your cookware while stirring. Look for one with a long handle to keep your hands away from heat.

Aluminum Foil

Heavy-duty aluminum foil (like Reynolds Wrap) is essential for covering the casserole during baking. It traps steam for even cooking and prevents the top from drying out. ✨

Measuring Cups

Accurate measuring cups ensure proper rice-to-liquid ratios. I use OXO Good Grips for their clear markings and comfortable handles.

Frequently Asked Questions