The Best Grilled Portobello Mushroom Burgers

Ingredients

• 4 portobello mushroom caps
• 2 tablespoons balsamic vinegar
• 1 tablespoon low sodium soy sauce
• 1 tablespoon olive oil
• 1 tablespoon rosemary chopped
• 1 1/2 teaspoons steak seasoning like Montreal Steak Grill Mates
• 4 slices red onion
• 4 ounces swiss cheese reduced fat, sliced thin (Alpine lace)
• 4 slices tomato
• 1/2 avocado sliced thin
• baby spinach
• 4 whole wheat
• 1 calorie buns

Nutrition

• Calories : 310 calories
• Carbohydrate : 31 grams
• Cholesterol : 25 milligrams
• Fat : 16 grams
• Fiber : 4 grams
• Protein : 14 grams
• SaturatedFat : 6 grams
• Sodium : 200 milligrams
• Sugar : 6 grams