Cheeseburger Casserole

• 1/4 lb Bacon

• 1 lb Ground beef

• 4 oz Mushrooms, canned

• 3/4 cup Onion

• 1 tsp Oregano

• 16 oz Tomato sauce

• 12 oz Macaroni

• 1/2 tsp Garlic salt

• 1/8 tsp Pepper

• 1 1/2 tsp Salt

• 1 cup Cheddar cheese

• 1 cup Provolone cheese