Cooking spray, for greasing pan • bacon, 1/2 in. pieces • ground beef, browned and drained • thin spaghetti, cooked and drained • garlic, minced • med. onion, chopped • bell pepper, chopped • cans diced tomatoes not drained • can sliced black olives, drained • dried oregano • grated cheddar (5 oz) • can cream of mushroom soup •