1 can cream of mushroom soup
1/2 c. milk
7 oz. can tuna fish
1/4 c. minced onion
1/2 c. chopped celery
1/2 c. shredded cheddar cheese
2 c. cooked macaroni
2 tbsp. bread crumbs or crackers

Mix all ingredients except cheese and bread crumbs. Put in 1 1/2 quart casserole and top with cheese and crumbs. Bake at 375 degrees for 30 minutes.