Spaghetti Casserole

Ingredients

• 1 c. chopped onions
• 1 c. chopped green pepper
• 1 T. butter
• 28 oz. tomatoes (undrained)
• 4 oz. mushrooms (drained)
• 3.8 oz. sliced black olives
• 2 t. dried oregano
• 1 lb. ground beef (browned and drained)
• 12 oz. spaghetti (cooked and drained)
• 2 c. shredded cheddar cheese
• 10 3/4 oz. can cream of mushroom soup
• 1/4 c. water
• 1/4 c. grated parmesan cheese