01 -
Heat 2 tablespoons of vegetable oil in a skillet over medium heat. Sauté the finely diced onion until translucent, about 4 minutes. Add minced garlic cloves and continue cooking until fragrant, about 40 to 60 seconds. Remove from heat and allow to cool for 1 to 2 minutes.
02 -
In a large bowl, combine cooked onion and garlic, ground beef, panko breadcrumbs, egg, tomato sauce, yellow mustard, Worcestershire sauce, dried oregano, black pepper, and salt. Mix gently with hands until just combined to avoid toughness.
03 -
Shape the mixture into 4 to 5 oval-shaped steaks, ensuring uniform size for even cooking.
04 -
Heat remaining 2 tablespoons of vegetable oil in the skillet over medium heat. Brown the patties in batches for approximately 2 minutes total, turning once after 1 minute per side. Transfer browned patties to a plate; they will finish cooking later.
05 -
In the same skillet, heat 1 tablespoon vegetable oil over medium heat. Sauté sliced onion until browned, about 5 minutes. Add sliced mushrooms and cook until golden and tender.
06 -
Return the browned patties to the skillet with mushrooms and onions. Pour in low-sodium beef broth and season with onion powder, garlic powder, Worcestershire sauce, salt, and pepper. Bring to a boil, cover, and simmer for 15 minutes.
07 -
In a small bowl, combine cornstarch with water or beef stock to create a slurry. Gradually stir the slurry into the skillet, cooking for an additional 5 minutes until the gravy thickens slightly and the patties reach an internal temperature of 160°F (71°C).
08 -
Serve the smothered steaks hot, ideally accompanied by mashed potatoes for a classic presentation.