Cook the Hamburger Patties: Start by heating the vegetable oil or butter in a large skillet over medium-high heat. Once hot, add the frozen hamburger patties to the skillet. Cook them for about 5-6 minutes on each side until they’re browned and heated through. After cooking, remove the patties from the skillet and set them aside on a plate.

Sauté the Veggies: In the same skillet, add the sliced onions and mushrooms. Cook these for about 4-5 minutes until they’re tender and the onions become translucent. If you’re not using mushrooms, just skip this step!

Create the Gravy Base: Next, sprinkle the all-purpose flour over the onions and mushrooms. Stir well and cook for about 1 minute. This helps get rid of the raw flour taste and builds a nice base for the gravy.

Make the Gravy: Slowly pour in the beef broth while stirring constantly to avoid lumps in the gravy. It’s important to mix well! Then, add the Worcestershire sauce and ketchup. Stir everything together and watch the sauce begin to thicken over about 3-4 minutes. Don’t forget to season with salt and pepper to taste!

Combine and Simmer: Now, return the cooked hamburger patties to the skillet, making sure they’re coated with the gravy. Let everything simmer together for another 5 minutes. This allows all the flavors to meld beautifully.

Prepare the instant potatoes and green beans according to package directions.

Serve and Enjoy: When everything is heated through and the gravy is nicely thickened, it’s time to serve! Plate the Salisbury steak hot, alongside mashed potatoes and green beans