Salisbury Steak covered in a super flavorful gravy loaded with sliced mushrooms and served over mashed potatoes makes a filling and delicious meal.
Salisbury Steak is one of my favorite beef dinners because it is such an economical way to eat red meat.

The problem with Salisbury Steak is sometimes the patties are dry, tough, and flavorless.
This recipe includes potato flakes which help keep the steaks tender and moist. The potato flakes are first reconstituted with milk and then added to the ground beef mixture.

 
A packet of onion soup mix really gives the Salisbury Steaks an amazing flavor, and with so little effort. Part of the packet gets mixed in with the ground beef and the rest helps flavor the gravy.

 
A tablespoon of ketchup adds flavor and depth to the gravy which is full of mushrooms and onions.
 
I love to serve Salisbury Steak with mashed potatoes and peas for a comforting and filling dinner any night of the week.

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Salisbury Steak   Save Print Prep time 45 mins Cook time 35 mins Total time 1 hour 20 mins   Serves: 4 servings Ingredients ½ cup milk ⅓ cup instant potato flakes 1 packet dry onion soup mix 1 pound lean ground beef (90%) ¼ teaspoon pepper 4 tablespoons butter,divided 1 tablespoon vegetable oil 1 medium yellow onion, peeled, cut in half and thinly sliced 1 (8-ounce) package white mushrooms, sliced 2 tablespoons flour 1 tablespoon ketch...