Ultimate Cheesy Mexican Casserole for Weeknight Dinners Step-by-step instructions

Before you start

Before beginning, ensure all ingredients are measured and ready for assembly. Preheat your oven to 375°F (190°C) to ensure it is at the correct temperature when the casserole is ready to bake. Have your 9x13-inch glass baking dish cleaned and placed on a stable surface.

Keep a meat thermometer handy to check the internal temperature of the ground beef, ensuring it meets safety standards before you proceed with the layering process. Having everything organized will make the assembly process efficient and stress-free.

Instructions

Browning the beef

1. 1Prepare the beef filling
   Heat a large skillet over medium-high heat. Add the ground beef and cook, breaking it apart with a spatula, until it is browned and no longer pink. Ensure the internal temperature reaches at least 160°F (71°C) to ensure it is fully cooked through.
   Look for The beef should be browned and sizzling nicely in the pan.
   Safe temperature 160°F (71°C) internal temperature (ground meat)
   Tip Drain any excess grease from the pan after browning the meat for a cleaner flavor.

The ground beef should be fully cooked, with no pink remaining, and the skillet should contain minimal excess grease.

The meat should be sizzling audibly and have a deep, browned appearance, indicating that the flavor has developed fully before it is combined with other ingredients in the baking dish.

Assembling the layers

2. 2Layer the casserole
   In a 9x13-inch glass baking dish, spread the tortilla chips evenly across the bottom. Add the cooked ground beef and the drained beans over the chips. Sprinkle the shredded cheese generously over the top to ensure full coverage.
   Look for The dish should be filled with layers ready for the oven.
   Tip Try to distribute the beans and beef evenly to ensure every bite has all the ingredients.

The tortilla chips should form an even, solid base layer across the bottom of the baking dish. The beef and bean mixture should be distributed uniformly, and the cheese should completely cover the surface to ensure a consistent, gooey crust forms during the baking process.

Baking to perfection

3. 3Bake and serve
   Place the baking dish in a preheated oven at 375°F (190°C). Bake until the cheese is melted, bubbly, and slightly browned on top. Remove from the oven and let it rest for 5 minutes before serving to allow the layers to settle.
   Look for The cheese should be completely melted and bubbling across the surface.
   Tip Watch the cheese closely during the final minutes to prevent it from burning.

The cheese should be completely melted and bubbling across the entire surface of the casserole. The edges of the cheese might show slight browning, which adds a desirable depth of flavor. The dish should look cohesive and smell savory, signaling that it is ready to be removed from the oven.

Common mistakes

A common mistake is using too much liquid in the beef mixture, which can lead to a soggy casserole. Be sure to drain any excess grease thoroughly after browning the meat. Another oversight is failing to preheat the oven properly, which can result in uneven cooking of the cheese.

Avoid overcrowding the baking dish, as this can prevent the cheese from browning evenly. Finally, do not skip the resting period, as it is essential for the structure of the dish.

How to tell it’s done

The casserole is done when the cheese is thoroughly melted, bubbly, and showing signs of golden-brown spots. The ground beef must have reached an internal temperature of at least 160°F (71°C) during the initial browning phase.

When you insert a spatula into the center, the dish should feel warm and the cheese should provide a satisfying, gooey pull. Allow the dish to rest for 5 minutes after removing it from the oven to ensure the layers hold their shape when plated.

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