and stir to combine.
spray large casserole dish with non-stick spray.
top beef mixture with corn and creamed corn. spread evenly on top of beef.
drain potatoes. add butter and sour cream and mash to combine. season potatoes with salt and pepper to taste.
spread mashed potatoes on top of corn layer.
bake at 350 degrees for 35-45 minutes or until bubbling around the edges. 