Heart Healthy Hamburgers Recipe
Lightly coat a small skillet with nonstick cooking spray and heat over medium-high heat until hot. Add mushrooms and sauté until tender, drain if needed.
Preheat a grill.
In a bowl, combine the mushrooms with remaining ingredients. Form 6 hamburger patties. Grill for approximately 4 minutes on each side, or until desired doneness. Top with cheese, lettuce, tomatoes and red onion, if desired. Serve on buns.