6 onions, sliced
1 (4 oz.) can sliced mushrooms, drained
2 tbsp. butter
1 c. cottage cheese
1 c. sour cream
1/2 tsp. celery salt
8 oz. spaghetti, cooked and drained
3 c. cubed cooked ham
1 c. shredded Cheddar cheese
1/4 tsp. pepper

Combine onions, mushrooms, and butter in 7x12x2 inch dish. Microwave covered on high for 3 1/2 minutes, stirring once. Stir in cottage cheese, sour cream, celery salt and pepper. Add spaghetti and ham and mix well. Cover and cook on high for 12-14 minutes, giving the dish a quarter turn twice. Sprinkle cheese on top. Cover and let stand for 5 minutes to melt cheese.