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Final dish served in a white baking dish with herbs scattered on top.

Mexican White Trash Casserole Recipe

A cheesy taco-style casserole made with seasoned ground beef, Doritos, Rotel tomatoes, sour cream, cheddar cheese soup, milk, and melted cheddar cheese.
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Course: Casserole, Dinner, Main Course
Cuisine: American, Mexican-Inspired
Keyword: cheesy ground beef casserole, Doritos taco casserole, easy Mexican casserole, Mexican White Trash Casserole Recipe
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Servings: 8

Ingredients

  • 2 tsp olive oil
  • 1 lb ground beef
  • ½ cup water
  • 1 oz taco seasoning 1 packet
  • 3 cups shredded cheddar cheese divided
  • 10.75 oz condensed cheddar cheese soup
  • 10.5 oz Rotel tomatoes undrained
  • ½ cup sour cream
  • ¼ cup milk
  • 14.5 oz Doritos nacho chips lightly crushed, about 4 cups
  • Fresh chopped parsley or cilantro for garnish

Instructions

Preheat the oven.

  • Preheat the oven to 350°F.

Prepare the baking dish.

  • Spray a 9x13-inch baking dish with cooking spray.

Brown the ground beef.

  • Heat the olive oil in a large skillet over medium-high heat. Add the ground beef and cook until no longer pink, breaking it into crumbles as it cooks.

Drain the excess fat.

  • Drain any excess fat from the skillet.

Season the beef.

  • Add the water and taco seasoning to the cooked beef. Stir to combine and cook for 1 to 2 minutes, or until the mixture thickens slightly.

Add the creamy ingredients.

  • Add the condensed cheddar cheese soup, undrained Rotel tomatoes, sour cream, and milk to the skillet.

Combine the filling.

  • Stir until the ingredients are fully combined and the mixture is smooth and creamy.

Add part of the cheese.

  • Stir in half of the shredded cheddar cheese until evenly distributed through the meat mixture.

Create the first chip layer.

  • Spread half of the lightly crushed Doritos in an even layer on the bottom of the prepared baking dish.

Add the first meat layer.

  • Spoon half of the taco beef mixture over the Doritos and spread evenly.

Add the remaining chips.

  • Layer the remaining lightly crushed Doritos over the meat mixture.

Add the remaining meat mixture.

  • Spoon the remaining taco beef mixture over the second layer of Doritos and spread evenly.

Top with cheese.

  • Sprinkle the remaining shredded cheddar cheese evenly over the top of the casserole.

Bake the casserole.

  • Bake uncovered for 30 minutes, or until the casserole is hot, bubbly, and the cheese is fully melted.

Garnish and serve.

  • Remove from the oven and allow the casserole to rest for a few minutes. Garnish with fresh chopped parsley or cilantro, if desired. Serve warm.

Notes

To make this recipe gluten-free, use certified gluten-free nacho-style chips instead of regular Doritos.
Verify that the taco seasoning is gluten-free, as some packets may contain wheat-based fillers or anti-caking agents.
Use a gluten-free condensed cheddar cheese soup, or substitute with a homemade gluten-free cheese sauce.
Check that the Rotel tomatoes, sour cream, milk, and shredded cheddar cheese are labeled gluten-free.
Prepare the casserole with clean utensils, cookware, and surfaces to prevent cross-contamination.