Jan 10, 2018 · Recipe VIDEO above. Salisbury steak is a totally scrumptious way to transform the humble ground beef / mince into something amazing! The onion grating / soaking breadcrumbs will make your patties extra tasty and tender, and the Mushroom Gravy is made extra delicious by cooking the Salisbury Steaks IN the gravy! Slow Cooker Salisbury Steak is a delicious and easy to make recipe. Flavorful beef patties with tasty seasonings, cooked in a yummy brown gravy. Crock Pot Salisbury Steaks are a family favorite recipe.