Ingredients:
1 lb ground beef
1/2 lb ground pork
1/2 cup breadcrumbs
1 large egg
2 tbsp Worcestershire sauce
2 cloves garlic, minced
1/4 cup grated onion
Salt and black pepper, to taste
For the Mushroom Gravy:
2 tbsp olive oil
1 tbsp butter
8 oz mushrooms, sliced
1 small onion, finely chopped
2 cloves garlic, minced
2 tbsp all-purpose flour
2 cups beef broth
1 tbsp Worcestershire sauce
1 tbsp fresh parsley, chopped (plus more for garnish)
Salt and black pepper, to taste
Instructions:
Prepare the Steaks: In a large bowl, mix ground beef, ground pork, breadcrumbs, egg, Worcestershire sauce, garlic, grated onion, salt, and pepper until combined. Form into four oval patties, pressing slightly in the center to help them cook evenly.
Sear the Steaks: Heat a large skillet over medium-high heat and add a bit of oil. Sear each patty for 3-4 minutes per side until browned. Remove from skillet and set aside.
Make the Gravy: In the same skillet, add olive oil and butter. Add mushrooms and cook for 4-5 minutes until golden. Add chopped onion and cook another 2-3 minutes until softened. Stir in garlic and cook for 1 minute more.
Thicken the Gravy: Sprinkle flour over the mushroom mixture, stirring constantly for 1-2 minutes until flour is golden brown. Gradually add beef broth, whisking to combine. Add Worcestershire sauce and bring to a simmer until thickened, about 5-7 minutes.
Combine and Cook: Return the patties to the skillet, nestling them into the gravy. Cover and cook for 10 minutes until the patties are cooked through and flavors meld. Stir in parsley and adjust seasoning with salt and pepper as needed.
Serve: Garnish with additional parsley and serve the Salisbury steaks with creamy mashed potatoes or rice, spooning the mushroom gravy over everything.