Mushroom Patty Melt

1 pound ground sirloin

Cooking spray

1 tablespoon olive oil

1/4 cup thinly sliced yellow onion

1/8 teaspoon salt

1/8 teaspoon black pepper

1 (8-ounce) package sliced cremini mushrooms

1 1/2 teaspoons all-purpose flour

1/4 cup beef broth

8 (1.1-ounce) slices rye bread

4 (3/4-ounce) slices provolone cheese

Preparation

1. Heat a large nonstick skillet over medium-high heat. Shape beef into 4 (4-inch) patties. Coat pan with cooking spray. Add patties; cook 4 minutes on each side or until done.

2. Heat oil in a medium skillet over medium-high heat. Add onion, salt, pepper, and mushrooms; sauté 3 minutes. Sprinkle flour over mushroom mixture; cook 1 minute, stirring constantly. Stir in beef broth; cook 30 seconds or until thick. Remove from heat; keep warm.

3. When patties are done, remove from large skillet. Wipe pan clean; heat over medium-high heat. Coat 1 side of each bread slice with cooking spray. Place 4 bread slices, coated sides down, in pan. Top each with 1 patty, 1 cheese slice, and one-fourth of mushroom mixture. Top with remaining bread slices; coat with cooking spray. Cook 2 minutes on each side or until browned.