Ingredients
1½lbsground beef
½cuppanko bread crumbs
1egg
¼tspblack pepper
1tbspall-purpose flour
1½cupsbeef broth,low sodium
1ozbrown gravy mix,dry
2tbspketchup
1tspdijon mustard
2tbspbutter
1onion,thinly sliced
1cupmushrooms,thinly sliced
2tbspcornstarch
4tbspwater
6largerolls,or Kaiser buns
6slicesswiss cheese,or cheddar cheese
Preparation
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 to 20 minutes or until patties are cooked through. Stack the patties on 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.
To assemble burgers, place 1 slice of cheese, 1 patty and a spoonful of mushroom gravy on each roll. Top with favorite toppings.
