1 pound ground beef (see Note)
1 small onion, chopped
1/2 teaspoon garlic powder
1 (1.25-ounce) envelope taco seasoning mix
1 (8-ounce) can tomato sauce
1 cup sour cream
1 cup small curd cottage cheese
4 cups crushed tortilla chips
2 cups (8 ounces) shredded Colby Jack cheese
Directions1.Preheat oven to 350 degrees F. Coat a 2-1/2-quart casserole dish with cooking spray.
2.In a large skillet over high heat, cook beef and onion 5 to 6 minutes, or until no pink remains; drain off excess fat. Add garlic powder, taco seasoning mix, and tomato sauce to beef; mix and set aside.
3.In a medium bowl, combine sour cream and cottage cheese; set aside.
4.Place half the crushed chips in the bottom of the casserole dish. Add enough meat mixture to cover the chips, then cover the meat with half the sour cream mixture. Sprinkle with half the cheese; repeat layers.
5.Bake, uncovered, 30 to 35 minutes, or until casserole is heated through.