Mexican Casserole Recipe With Ground Beef: Layered Tex-Mex Flavor in One Pan

This one-pan Mexican casserole brings together ground beef, bold spices, and layers of Tex-Mex flavors that bake into a hearty, satisfying meal. I developed this recipe to capture the essence of traditional flavors without the fuss of multiple pots and pans.

What sets this apart is the careful layering of seasoned beef, tortillas, cheese, and beans, creating a dish that’s both rich and balanced. Each bite delivers a mix of textures and tastes, from the savory meat to the melted cheese and tender tortillas.

The beauty of this casserole is its simplicity—just one pan and straightforward steps to a meal that feels special. It’s perfect for feeding a crowd or meal prepping for the week.

Serve it straight from the oven for a dish that’s as comforting as it is flavorful. Here’s how to make it.

Ingredients for Mexican Casserole Recipe with Ground Beef

Hearty ground beef, layers of cheese, and Tex-Mex spices come together in this one-pan wonder.

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The ground beef is the foundation—80/20 blend keeps it juicy through baking. Look for USDA Choice at Whole Foods or Costco for consistent quality. The tortillas should be soft, fresh, and at least 10 inches across. Mission brand holds up well, but any sturdy flour tortilla works. For the cheeses, shredding from a block gives you better melt and texture than pre-shredded (which has anti-caking agents).

Swapping the beef? Ground turkey or chicken works at a 1:1 ratio (use 93/7 lean to avoid dryness). No Monterey Jack? Pepper Jack adds a nice kick. Vegetarian? Black beans plus crumbled tempeh mimics the texture. For the spices, if you’ve got Mexican oregano, use it—it’s earthier than Mediterranean. The canned tomatoes can be fire-roasted for extra depth.

Assemble and bake immediately, or prep up to 12 hours ahead and refrigerate. Leftovers keep 4-5 days in the fridge, reheat covered with foil. Freezes beautifully for 3 months—thaw overnight before reheating to keep the tortillas from getting soggy.

Step-by-Step Instructions for Mexican Casserole With Ground Beef

Here’s the method. Straightforward, tested, works every time.

Step 1: Brown the Beef and Aromatics

Heat a large skillet over medium-high heat. Add the 2 lb Ground Beef and cook, breaking it up with a wooden spoon, until it’s no longer pink, about 5-7 minutes. I press it into the pan to ensure even browning and maximum flavor development.

Stir in the diced 1 whole Onion, 1 whole Bell Pepper, and minced 4 cloves Garlic Cloves. Cook for 3-4 minutes until the vegetables soften and the onion turns translucent. This builds the flavor base for your creation.

Add the 2 tbsp Chili Powder, 1.5 tsp Ground Cumin, 1 tsp Dried Oregano, 1.5 tsp Salt, and 1 tsp Black Pepper. Stir well to coat the beef and vegetables evenly. Cook for 1 minute to toast the spices until fragrant.

Step 2: Build the Sauce

Pour in the 14.5 oz Diced Tomatoes (with juices) and 8 oz Tomato Sauce. Stir to combine, scraping up any browned bits from the bottom of the pan. These bits add depth and richness to the sauce.

Add the drained and rinsed 15 oz Black Beans and stir to incorporate. Reduce heat to medium-low and let the mixture simmer for 5 minutes until it thickens slightly. You want it to be saucy but not watery.

Taste and adjust seasoning if needed. The sauce should be well-balanced with a hint of warmth from the spices. This is the heart of your dish, so take your time here.

Step 3: Layer the Casserole

Preheat your oven to 375°F. Lightly grease a 9×13-inch baking dish. Cut the 8 pieces Flour Tortillas into quarters and arrange half of them in an even layer on the bottom of the dish.

Spoon half of the beef mixture over the tortillas, spreading it evenly. Sprinkle 1 cup of the 3 cups Cheddar Cheese and 1 cup of the 2 cups Monterey Jack Cheese over the beef. Repeat the layers with the remaining tortillas, beef mixture, and cheeses.

Step 4: Bake to Perfection

Cover the dish with aluminum foil and bake for 20 minutes. Then, remove the foil and bake for an additional 10-15 minutes until the cheese is melted, bubbly, and starting to turn golden brown in spots.

Let the casserole rest for 5-10 minutes before serving. This allows the layers to set and makes it easier to serve. The top should be beautifully golden, and the cheese should stretch slightly when you cut into it.

Garnish with fresh cilantro or sliced green onions if desired, though this isn’t required for the perfect result.

Best Sauces and Condiments for mexican casserole recipe with ground beef

Classic Pico de Gallo

Fresh pico de gallo adds bright acidity that cuts through the richness. I mix 2 cups diced tomatoes, ½ cup diced onion, 1 minced jalapeño, and ¼ cup chopped cilantro with lime juice and salt. The colors pop beautifully on this dish. 💛

Creamy Avocado Crema

Blend 1 ripe avocado, ½ cup sour cream, 2 tbsp lime juice, and 1 minced garlic clove until smooth. The creamy texture contrasts perfectly with the casserole’s hearty layers. I always make extra for drizzling.

Spicy Chipotle Sauce

For heat lovers, mix ½ cup mayonnaise, 2 tbsp adobo sauce from canned chipotles, and 1 tbsp lime juice. This smoky, spicy sauce adds depth without overpowering. Start with 1 tsp adobo if you’re sensitive to heat.

Cool Sour Cream

A simple dollop of sour cream or Mexican crema cools each bite. I prefer the tang of Tillamook sour cream from our local Portland markets. It’s the perfect foil for the warm spices in the dish.

Fresh Guacamole

Mash 2 ripe avocados with 1 tbsp lime juice, ¼ cup diced onion, and salt to taste. The buttery avocado complements the beef beautifully. I like mine chunky for texture contrast. 🥑

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