Baked Spaghetti Dish

Ingredients

• 1 c. chopped red or yellow onion
• 1 c. chopped green pepper
• 1 Tbsp. butter
• 1 (28 oz.) can tomatoes with liquid, cut up
• 1 (4 oz.) can sliced mushrooms
• 2 cans sliced olives, drained
• 2 tsp. Italian seasoning
• 12 oz. thin spaghetti, cooked and drained
• 2 c. grated Mozzarella cheese
• 1 can cream of mushroom soup
• 1/4 c. water
• 1/4 c. Parmesan cheese