01 -
In a large skillet over medium heat, break up and cook the ground beef until fully browned and most juices evaporate, about 7 minutes.
02 -
Stir in taco seasoning, diced tomatoes with green chilies, cheddar cheese soup, and milk. Reduce heat and simmer gently for 5 minutes to meld flavors and slightly thicken sauce.
03 -
Grease a 9x13-inch baking dish. Evenly spread half of the crushed Doritos to form a crunchy base layer.
04 -
Spoon the hot beef mixture over the Doritos base and use a spatula to distribute into an even layer.
05 -
Cover with remaining crushed Doritos and sprinkle shredded cheddar evenly on top. Bake in a preheated 350°F oven for 15 to 20 minutes until cheese bubbles and browns lightly.
06 -
Let the casserole rest for 5 minutes after baking to allow layers to set for easier slicing and serving.