Baked Spaghetti Recipe

• 1 cup chopped onion
• 1 cup chopped green pepper
• 1 tablespoon butter
• 1 can 28-oz diced tomatoes undrained
• 1 can (4oz) mushroom stems and pieces, drained
• 1 can (2 1/4oz) sliced ripe olives, drained
• 2 teaspoons dried oregano
• 1 pound ground beef, browned and drained, optional
• 12 ounces spaghetti, cooked and drained
• 2 cups (8oz) shredded cheddar cheese
• 1 can (10 3/4 oz) condensed cream of mushroom soup, undiluted
• 1/4 cup water
• 1/4 cup grated Parmesan cheese

Directions