Mix potatoes, 2 cans of cream of chicken, 8oz sour cream, 1 diced onion and 1 stick unsalted melted butter. Squish into a casserole dish. Sprinkle with salt/pepper/parsley or cajun seasoning if you like some zesty spunk. In separate bowl, mix 2 sleeves crushed ritz crackers and 2 sticks melted butter. Sprinkle on top of casserole. Bake uncovered at 350 for 1hr.