The Grilled Portobello Mushroom Burger Recipe

Ingredients For The Grilled Portobello Mushroom Burger Recipe

• 4 Portobello mushroom caps
• 2 tablespoon Balsamic vinegar
• 1 tablespoon Low sodium soy sauce
• 1 tablespoon Olive oil
• 1 tablespoon Chopped rosemary
• 1 teaspoon Steak seasoning like montreal steak grill mates
• 4 Thick slices red onion
• 4 ounce Reduced fat swiss, sliced thin
• 4 Thin slices tomato
• 0.5 Avocado, sliced thin
• Baby spinach
• 4 Whole wheat low calorie buns, i used martin