Instant Pot Salisbury Steaks are the ultimate American comfort food, simmered and smothered in a decadent, rich, and savory mushroom and caramelized onion gravy.
1. In a large mixing bowl, add ground beef, egg, bread crumbs, grated onion, garlic powder, onion powder, salt, pepper, and thyme. Mix together until combined. Form 8 patties, and set aside on a plate.
2. Heat olive oil in a large skillet over medium-high heat. When skillet is hot, quickly sear the outside of the patties, 2 or 3 at a time. (Don't cook them all the way through.) Remove from skillet and transfer to bottom of Instant Pot.
3. When all patties have been browned, add onions and mushrooms to the skillet. Saute until onions are tender, about 3-5 minutes. Pour onion mixture on top of patties in Instant Pot.