1-Getting started with this Dorito casserole recipe with ground beef and creamy cheese is straightforward and fun. Begin by preheating your oven to 400°F (204°C) and spraying a 9×13-inch baking dish with cooking spray to prevent sticking. This step sets the stage for a smooth baking process that results in a bubbly, golden dish.

2-Next, cook the 1 pound ground beef and 1 large yellow onion in a skillet over medium heat until the beef is no longer pink, then drain any excess fat. This helps build a flavorful base for your beef cheese Dorito bake. Stir in the 2 packages mild taco seasoning, 1 (14.5-ounce) can petite diced tomatoes (drained), 1 (4-ounce) can mild diced green chilies, 1 cup sour cream, and 1 (10.75-ounce) can condensed cream of mushroom soup; heat everything through until it’s well combined.

3-Now, layer one-third of the crushed corn chips in the bottom of your baking dish, followed by half of the beef mixture. Add another one-third of the crushed corn chips, then the remaining beef mixture. Top with the rest of the crushed corn chips and evenly sprinkle the 1 ½ cups shredded Monterey Jack cheese and 1 ½ cups shredded cheddar cheese on top. Bake uncovered for 20-25 minutes until heated through and the cheese is bubbly.