Crock Pot Lazy Pierogi Casserole is a comforting and easy-to-make dish that combines all the flavors of traditional pierogies in a convenient casserole form. This recipe features layers of lasagna noodles, creamy mashed potatoes, sautéed onions, and melted cheese. The casserole is slow-cooked in a crock pot, allowing the flavors to meld together and creating a deliciously cheesy and satisfying meal. Serve this dish as a main course or as a side dish for a hearty and comforting meal.