Salisbury Steak with Mushroom Gravy

Ingredients

• 1/2 onion (white, brown, or yellow)
• 1/2 cup panko breadcrumbs (or 1/3 cup ordinary breadcrumbs)
• 1 lb ground beef
• 1 garlic clove, minced
• 1 egg
• 2 tbsp ketchup
• 1 beef bouillon cube, crumbled
• 1/2 tsp Worcestershire sauce
• 3 tsp Dijon mustard or 2 tsp dry mustard powder
• 1 tbsp olive oil
• 2 garlic cloves, minced
• 1/2 onion, finely chopped
• 5 oz mushrooms, sliced
• 2 tbsp unsalted butter
• 3 tbsp all-purpose flour
• 2 cups beef broth, low sodium
• 1/2 cup water
• 2 tsp Dijon mustard
• 2 tsp Worcestershire sauce
• Salt and pepper to taste

Instructions

1. Place breadcrumbs in a bowl. Use a box grater to grate the onion over the breadcrumbs. Mix with fingers and leave to soak for a few minutes.
2. Add remaining Salisbury steak ingredients (ground beef, garlic, egg, ketchup, bouillon cube, Worcestershire sauce, and mustard) to the bowl. Use your hands to mix until just combined, then mix well for a couple of minutes until the mixture becomes slightly pasty to ensure patties hold together.
3. Divide mixture into 5 portions and pat very firmly into oval patties about 3/4 inch thick.
4. Heat oil in a skillet over high heat. Add the steaks and cook the first side for 1 minute until browned, then gently flip and brown the other side. Remove onto a plate (they will still be raw inside).
5. If skillet is dry, add a touch more oil. Add chopped onion and garlic, cooking for 2 minutes until onions are slightly translucent.
6. Add mushrooms to the skillet and cook for 2-3 minutes until golden.
7. Turn heat down to medium. Add butter, and once melted, add flour and cook for 30 seconds, stirring constantly.
8. Gradually add beef broth, stirring as you go. Once mostly lump-free, whisk in remaining gravy ingredients (water, Dijon mustard, and Worcestershire sauce).
9. Add steaks back to the skillet along with any juices from the plate. Cook for 5-7 minutes until gravy is thickened, stirring occasionally around the steaks. If gravy thickens too quickly, add more water.
10. Remove steaks onto a plate. Taste gravy and adjust salt and pepper to taste.
11. Serve Salisbury steaks topped with mushroom gravy over mashed potatoes. Sprinkle with parsley if desired.