Gourmet Comfort: Salisbury Steak with Caramelized Onion Gravy

Instructions:

1. Prepare the Patties: In a bowl, mix ground beef, breadcrumbs, milk, egg, Worcestershire sauce, salt, and pepper. Shape into oval patties.
2. Sear the Steaks: Heat olive oil in a skillet over medium-high heat. Sear the patties until browned on both sides. Remove from the skillet.
3. Caramelize Onions: In the same skillet, add sliced onions and cook until golden and caramelized.
4. Create the Gravy: Sprinkle flour over the caramelized onions, stirring to coat. Gradually add beef broth, soy sauce, and Dijon mustard. Bring to a simmer until the gravy thickens.
5. Simmer and Serve: Return the seared patties to the skillet, simmering in the caramelized onion gravy until cooked through. Garnish with fresh parsley before serving.