
Marinade a large portobello mushroom in French or Italian Dressing (you can buy the fat free version or regular if you prefer that) or you can make your own marinade by using 1 1/2 Tablespoons of balsamic vinegar, 1 teaspoon of olive oil, a clove of minced garlic, salt and pepper. Grill over medium heat until tender, about 5 minutes on each side. Serve on a whole wheat bun or alone.