Make dinnertime easy with this Crockpot Salisbury Steak recipe! Juicy beef patties slow cooked to tender perfection in an onion and mushroom gravy. This is a no-fuss dinner that is so hearty and delicious!
Place the sliced mushrooms & onions in the bottom of the crock pot.
In a medium-sized mixing bowl add the ground beef, bread crumbs, ketchup, Worcestershire sauce, ground mustard, egg, salt, and pepper. Mix with your hands until combined then shape into 4 oval patties.
Heat the butter in a medium-sized skillet over medium-high heat. Add the patties and cook for 3 minutes on each side. They don't need to be cooked all the way through, just browned.
Layer the patties over the mushrooms and onions.
In a medium bowl, add the beef broth, ketchup, and Worcestershire sauce and whisk to combine. Pour over the beef patties.
Cook on high for 3 hours, or low for 5 hours.
Remove the patties from the crockpot and set aside. In a small bowl add the cornstarch and water creating a slurry. Stir into the broth and let cook a few minutes until thickened. Add the beef patties back to the crock pot and gently toss to coat the patties in the sauce.
Garnish with fresh chopped parsley and serve over mashed potatoes.