1 lb. hamburger
14 oz. jar spaghetti sauce
8 oz. Mozzarella cheese, shredded
8 oz. sour cream
1 can crescent rolls

Brown hamburger and drain. Add spaghetti sauce and stir thoroughly. Place in bottom of 9"x13" pan. Spread sour cream over top of mixture, sprinkle Mozzarella cheese over sour cream. Spread crescent rolls on top. Bake at 350 degrees until crescent rolls are golden brown, about 25 minutes.