Brown and drain meat. Stir in tomato sauce, salt, pepper, and garlic salt. Simmer 5 minutes.
Combine cottage cheese, sour cream and onions in a medium size bowl.
Layer 1/2 of the lasagna noodles in the bottom of a 9x13-inch pan. Spoon and spread 1/2 of the sour cream mixture over the noodles, 1/2 of the meat mixture over the noodles, repeat and top with cheese.