Ingredients

• 4 large portobello caps
• 2 tbsp balsamic vinegar
• 1 tbsp olive oil
• 1 tsp garlic powder
• 4 whole-grain buns
• lettuce, tomato, and onion

Instructions

1. Whisk balsamic, oil, and garlic powder.
2. Brush mushrooms and marinate 15 minutes.
3. Grill 4 to 5 minutes per side until tender.
4. Toast buns lightly.
5. Assemble with lettuce, tomato, and onion.

Nutrition snapshot

Nutrition values are estimates and may vary by ingredients, brands and portions.