1 (16 oz.) pkg. frozen mixed vegetables
1 c. mayonnaise
1 tbsp. chopped onion
1 stalk chopped celery
1 c. grated cheese

Cook and drain vegetables, add butter. Mix mayonnaise, onions and celery. Spread over vegetables and put cheese on top. Add crumbled Ritz or other crackers on top. Bake at 350 degrees about 15 minutes.