The Best Grilled Portobello Mushroom Burger

1 hr Prep: 30 min Cook: 30 min
Serves: 4 Save

Ingredients (12)

  • 4 portobello mushroom caps
  • 2 tbsp balsamic vinegar
  • 1 tbsp low sodium soy sauce
  • 1 tablespoons olive oil
  • 1 tbsp chopped rosemary
  • 1-1/2 tsp steak seasoning like Montreal Steak Grill Mates
  • 4 thick slices red onion
  • 4 oz reduced fat Swiss
  • 4 thin slices tomato
  • 1/2 avocado
  • baby spinach
  • 4 whole wheat low calorie buns

Directions

Learn how to make this recipe at Skinnytaste