Crock Pot Pizza

1 pkg Kluski noodles

1 ½ lbs ground beef

¼ chopped onion

1 jar (28oz) spaghetti sauce

1 jar (4.5oz) mushrooms

1 pkg (3.5oz) sliced pepperoni

3 C (12oz) mozzarella cheese

1 ½ t Italian seasoning

3 c chedder cheese

Cook noodles as directed. In large skillet cook beef and onions, drain. Stir in spaghetti sauce, mushrooms and seasonsings. Drain and add noodles. Coat slow cooker with nonstick spray. Laying meat, then noodles, then cheese. Cook on low for 2 hours in crock pot.