Preheat oven to 350 degrees. Brown ground beef with onion and garlic. Drain. Add beans, taco seasoning and 1 cup salsa to meat mixture and heat through.
Line 13x9 baking dish with 4 corn tortillas (tear one in half). Spread half of meat/bean mixture over tortillas. Evenly distribute half of cottage cheese over meat. Than add cheddar cheese. Repeat, but before adding last layer of cheese, sprinkle 1/2 cup remaining salsa on cottage cheese then top with cheddar cheese.
Bake for 30-45 minutes or until bubbly and cheese is melted.