Ingredients:
Beef Patties:
1 ½ lbs ground beef
½ cup Panko bread crumbs
1 egg
¼ teaspoon black pepper
1 tablespoon all-purpose flour
Gravy:
1 ½ cups beef broth (low sodium)
1 oz package brown gravy mix (dry)
2 tablespoons ketchup
1 teaspoon dijon mustard
Other:
2 tablespoons butter
1 onion thinly sliced
1 cup mushrooms thinly sliced
2 tablespoons cornstarch
4 tablespoons water
6 large rolls or Kaiser buns
6 slices swiss or cheddar cheese
Instructions:
Combine beef, bread crumbs, egg, pepper and flour in a large bowl. Shape into 6 patties.
In a small bowl, combine, broth, gravy mix, ketchup and dijon, set aside.
Cook onions in butter over medium low heat for about 5 minutes or until slightly softened. Add mushrooms and cook an additional 3 minutes. Remove from pan and set aside.
Brown beef patties on both sides. Pour gravy mixture, mushrooms & onions over top and simmer covered for about 15-20 minutes or until patties are cooked through. Stack the patties in one side of the pan.
Combine cornstarch and water in a small bowl. Bring the gravy up to a low boil and whisk in the cornstarch mixture a little at a time until gravy thickens (you may not need all of it).
To assemble burgers, place 1 slice of cheese, 1 patty and a spoonful of mushroom gravy on each roll. Top with your favorite toppings.
Recipe Notes
For extra flavor spread garlic butter on the rolls and lightly toast them before assembling.
