1 bag frozen tater tots
1-8 oz. carton sour cream
1 stick margarine
salt, pepper, garlic powder
1 can chicken mushroom soup
1 can cream of celery soup
 

Mix all ingredients in a large bowl and pour into a buttered casserole  dish, covered.  Bake at 350 degrees for 45 minutes, remove cover(optional:  sprinkle shredded on top at this point), and bake 15 minutes more.