Chicken Casserole

lg pack chicken (boil then shred or cube)
1 can cream of chicken
8 oz. sour cream
1 tbsp. poppy seeds
1 sleeve Ritz crackers, crumbled
1 stick butter, melted

Mix together cream of chicken, sour cream, poppy seeds.  Add cooked chicken.  Pour into 9x13.  Sprinkled crumbled crackers on top, pour over melted butter.  Bake at 400 until crackers are golden brown.