In a large skillet, cook onion and brown ground beef until no pink remains. Add garlic and cook 1 more minute.
Add taco, seasoning, and water. Simmer for 5-7 minutes until reduced. Stir in cream of chickens soup.
Pour crushed Doritos into prepared pan. Top with beef mixture, beans, and cheese.
Bake for 15-20 minutes or until bubbly.
Serve with your favorite toppings such as lettuce, tomatoes, jalapenos, sour cream, and cheese. I also like to drizzle mine with Catalina dressing.
Catalina dressing: French dressing would be a good substitute.
Toppings: Use your favorite toppings, the skies the limit! Consider queso, pico de gallo, avocado black olives, salsa, guacamole, ect.
Beef: I used lean ground beef. If you're using a fattier version, be sure to drain it before adding it to the casserole.
Cheese: Shred your own cheese if possible. It won't have fillers like cornstarch that can interfere with melting.
Doritos: I used Nacho cheese doritos. However, any flavor such as ranch, or even Flamin' Hot.
Tips and Tricks
Crush Doritos: I do not suggest crushing in a food processor. Instead, crush in a plastic baggie with a rolling pin. This will give you larger pieces that won't get soggy.
Use Foil: If the topping begins to brown before your casserole is done baking, cover with foil for the remainder of the baking time. I also suggest lining your casserole dish with foil sprayed with nonstick cooking spray to make cleanup a breeze.
Brown Beef: I like to brown my ground beef using a potato masher. It breaks it up into perfect-sized pieces with less work. Just be sure to not use a metal potato masher on a non-stick skillet.