Bacon Mushroom Swiss Cheeseburger Soup Recipe
Ingredients 1 lb extra-lean (at least 90%) ground beef 1 medium onion, chopped (1/2 cup) 1 teaspoon finely chopped garlic 2 packages (8 oz each) fresh mushrooms, sliced (5 cups) 2 cups Progresso™ beef flavored broth (from 32-oz carton) 1 can (28 oz) Muir Glen™ organic fire-roasted diced tomatoes, undrained 1 teaspoon Montreal steak grill seasoning 1 teaspoon salt 1/4 teaspoon pepper 4 mini burger buns 4 teaspoons mayonnaise 1...