Easy Tex-Mex Beef Enchilada Casserole with Melted Cheese Step-by-step instructions

Before you start

Before starting the cooking process, organize your workspace and gather all necessary ingredients and equipment. Measure out the ground beef, enchilada sauce, tortillas, and shredded cheese. Preheat the oven to 375°F (190°C) so it is ready when the assembly is complete.

Lightly grease a 9x13-inch baking dish with nonstick cooking spray. Chop any optional garnishes if desired, and set them aside. Having everything prepped and within arm's reach ensures a smooth, stress-free assembly line once the beef is cooked and ready to be layered.

Instructions

Cooking the Beef Filling

1. 1Brown the Ground Beef
   Heat a large skillet over medium-high heat. Add the ground beef and cook, breaking it apart with a spatula, until fully browned and no pink remains. Drain any excess grease from the skillet to ensure the filling is not oily.
   Look for The beef should be finely crumbled and evenly browned.
   Tip Use a wooden spoon or spatula to break up large clumps.
2. 2Simmer the Beef in Sauce
   Pour 15 ounces of the red enchilada sauce into the skillet with the browned beef. Stir well to combine and let it simmer over medium-low heat for 5 minutes, allowing the beef to absorb the rich flavors. Ensure the ground beef reaches a safe internal temperature of 160°F (71°C) before proceeding.
   Look for The sauce should bubble gently and coat the beef thoroughly.
   Safe temperature 160°F (71°C) internal temperature (ground meat)
   Tip Simmering helps the spices fully penetrate the meat.

At the end of this phase, the ground beef should be fully browned, crumbled, and thoroughly combined with the rich red enchilada sauce. The mixture will simmer gently, releasing a savory, spiced aroma of chili, garlic, and cumin. There should be no visible pink meat remaining, and the sauce should coat the beef evenly, creating a thick, saucy filling. Check that the beef has reached an internal temperature of 160°F (71°C) before proceeding to the assembly stage.

Assembling the Layers

3. 3Prepare the Baking Dish
   Pour the remaining 5 ounces of red enchilada sauce onto the bottom of a 9x13-inch baking dish, spreading it evenly to coat. Lay 4 flour tortillas over the sauce, overlapping them slightly to cover the bottom of the dish.
   Look for The bottom of the dish should be fully covered with sauce and tortillas.
   Tip This base layer prevents the tortillas from sticking to the dish.
4. 4Layer the Beef and Cheese
   Spoon half of the simmered beef and sauce mixture over the tortillas. Sprinkle 1 cup of the shredded Mexican cheese blend evenly over the beef layer. Repeat with the remaining 4 tortillas, the rest of the beef mixture, and the remaining 1 cup of cheese.
   Look for The top should have a uniform layer of shredded cheese covering the beef.
   Tip Spread the ingredients to the edges for even layers.

At this stage, the casserole is fully assembled in the baking dish. The bottom layer of sauce is covered with filled, rolled tortillas, which are then topped with the remaining savory beef mixture and a generous, even layer of shredded Mexican cheese. The cheese should completely cover the meat and tortillas, creating a neat, uniform surface. The dish is now ready to be transferred to the preheated oven for the final baking process.

Baking to Golden Perfection

5. 5Bake the Casserole
   Place the assembled casserole in the oven preheated to 375°F (190°C). Bake uncovered for 20 to 25 minutes, watching for the cheese to melt fully and the edges to bubble.
   Look for The cheese topping must be completely melted and bubbly.
   Tip Rotate the dish halfway through baking for even browning.
6. 6Rest and Serve
   Remove the baking dish from the oven when the cheese is golden-brown and bubbly. Let the casserole rest for 10 minutes at room temperature before slicing and serving to allow the layers to set properly.
   Look for The casserole should hold its shape slightly when sliced.
   Tip Letting the dish rest prevents it from falling apart when served.

At the completion of the baking phase, the casserole will emerge from the oven sizzling hot and highly aromatic. The cheese topping will be completely melted, with beautiful golden-brown spots and bubbly, caramelized edges.

The red enchilada sauce will be bubbling vigorously around the perimeter of the dish. The entire kitchen will be filled with the rich, comforting scent of baked cheese, toasted tortillas, and spiced beef, signaling that the dish is ready to rest.

Common mistakes

One common mistake is failing to drain the excess grease from the ground beef after browning. Leaving too much fat in the pan will result in a greasy, watery casserole that separates during baking. Another error is using too little enchilada sauce, which leads to dry, tough tortillas that do not absorb the flavors properly.

Be sure to coat the bottom of the baking dish with sauce before adding the tortillas. Lastly, avoid overbaking the casserole, as this can dry out the meat and cause the cheese topping to burn rather than bubble.

How to tell it’s done

The casserole is fully cooked and ready when the cheese on top is completely melted, bubbly, and starting to turn golden brown around the edges. You should see the red enchilada sauce bubbling actively along the sides of the baking dish.

To ensure food safety, insert a food thermometer into the thickest part of the center; the internal temperature must reach at least 160°F (71°C) to ensure the ground beef is thoroughly cooked. Let the dish stand for a few minutes before slicing to allow the layers to set.

• Ground meat: 160°F (71°C) in the thickest part