Grilled Portabella Mushroom Burgers

• 2 tablespoons Land O Lakes Butter with Olive Oil & Sea Salt, melted
• 1 tablespoon chopped fresh basil leaves*
• 1 tablespoon balsamic vinegar
• 2 teaspoons finely chopped fresh garlic
• 2 medium (about 4 inches in diameter) portabella mushrooms
• 2 onion slices
• 2 whole wheat hamburger buns, split
• 2 romaine lettuce leaves
• 2 slices tomato

1. Heat gas grill to medium or charcoal grill until coals are ash white.
2. Combine Butter with Olive Oil & Sea Salt, basil, vinegar and garlic in small bowl.
3. Brush butter mixture over mushrooms, onion and cut-sides of buns.
4. Place mushrooms and onions on grill.
5. Grill, turning once and brushing with remaining butter mixture, until mushrooms are tender (6 to 8 minutes).
6. Place buns on grill, cut-side down.
7. Grill until toasted (1 to 2 minutes).
8. To serve, place lettuce on grilled bun; add grilled mushroom, tomato and onion slice.

butter, fresh basil, balsamic vinegar, fresh garlic, portabella mushrooms, onion, whole wheat hamburger buns, tomato

Taken from www.landolakes.com/recipe/814/grilled-portabella-mushroom-burgers (may not work)