Grilled Portabella Mushrooms

• 4 large fresh portabella mushroom caps
• 1/4 cup balsamic vinegar
• 2 tablespoons shallots (minced) or 2 tablespoons red onions (minced)
• 3 fresh garlic cloves (chopped)
• 2 tablespoons olive oil
• 1 tablespoon fresh rosemary (chopped)
• 1 tablespoon thyme (chopped)
• salt and pepper, to taste
• shaved fresh parmesan cheese, for garnish (optional)

1. Place mushrooms in a quart size zip lock bag combine remaining ingredients except cheese and pour over the top of the mushrooms.
2. Marinate for 1-2 hours, tossing once or twice.
3. Remove from marinade and cook on hot grill for 3 minutes on each side watching carefully not to burn.
4. Serve as a side dish, main course, or on a roll (burger substitute).
5. Topped with shaved cheese.

fresh portabella mushroom caps, balsamic vinegar, shallots, garlic, olive oil, fresh rosemary, thyme, salt, parmesan cheese

Taken from www.food.com/recipe/grilled-portabella-mushrooms-61725 (may not work)