
½ cup white onion - chopped
8 ounces mushrooms - sliced
1 tablespoon butter
2 pounds ground beef (minced beef) - lean ground beef/chuck
¾ cup breadcrumbs
1 medium egg - beaten
¼ cup ketchup (tomato sauce Australia and UK)
1 tablespoon all purpose flour (plain flour Australia and UK)
½ teaspoon salt
½ teaspoon ground black pepper
1 tablespoon Worcestershire sauce
8-12 slices baconEasy Mushroom Stuffed Burgers https://mincerecipes.info/ground-beef-mince-recipes/mushroom-stuffed-burgers/ January 6, 2022