Koepplinger’s Healthy Whole Grains bread
1 pound ground beef
¼ teaspoon garlic powder
2 medium onions, halved and sliced thinly
7 ounces shiitake mushrooms, sliced
Provolone cheese, thinly sliced
Combine chopped onion, beef, 1/8 teaspoon salt, 1/8 teaspoon pepper, and garlic powder in a medium bowl. Divide beef mixture shaping each into an oval patty. Press thumb in center of each patty, leaving a nickel-sized indentation.
Heat a large nonstick skillet over medium-high heat. Add patties, cook four minutes on each side or until done.
Heat two teaspoons oil in a medium skillet over medium-high heat. Add mushrooms, remaining onion, salt and pepper, sauté three minutes.
When patties are done, remove from large pan. Coat one side of each slice of bread with olive oil and place, coated side down, in pan. Top each with one patty, one cheese slice, and one-fourth of mushroom mixture. Top with remaining bread slices, cook two minutes on each side or until golden.