1 lb. crabmeat
2 (8 oz.) cream cheese
4 oz. sour cream
1 tbsp. mayonnaise
2 tsp. prepared mustard
1 tsp. salt
1 tbsp. Old Bay
1 tsp. Worcestershire
1/2 c. Cheddar cheese

Mix all ingredients except Cheddar cheese. Place in buttered casserole. Sprinkle Cheddar cheese on top. Bake at 350 degrees for 20-30 minutes.