5. If using sliced mushrooms, place them in the slow cooker with the browned meat patties. Then, drizzle the mushroom gravy over the patties and mushrooms.

6. Cover the slow cooker and simmer for 4-5 hours on low, or until the beef patties are soft and cooked through. Slow cooking enables the flavors to blend harmoniously.

7. When the Slow Cooker Salisbury Steak is done, serve it hot. For a splash of color and freshness, garnish with chopped fresh parsley.