Stacked Portobello and Chicken Burger

Ingredients

• 6 portobello mushrooms
• 2 tablespoons Tuscanini Balsamic Vinegar
• 1 pound ground chicken
• 1/4 cup barbecue sauce
• 1/2 teaspoon onion powder
• 4 Yukon Gold potatoes, peeled and cubed
• 1 and 1/4 teaspoons salt
• 1 tablespoon Bartenura Olive Oil
• 1 small onion, diced
• 3 tomatoes, diced
• 2 garlic cloves, crushed or 2 cubes Gefen Frozen Garlic
• 1 tablespoon fresh chopped basil or 1 cube Gefen Frozen Basil
• 1 teaspoon salt
• 1/4 teaspoon pepper