Portobello Mushroom Burgers

August 2009

4 portobello mushroom caps
yellow onion, sliced thick
1/4 cup balsamic vinegar
2 tablespoons olive oil
1 teaspoon dried basil
1 teaspoon dried oregano
1 tablespoon minced garlic
salt and pepper to taste
4 slices provolone cheese


1. In a shallow dish, whisk together vinegar, oil, basil, oregano, garlic,
salt, and pepper. Place the mushroom caps in the marinada. Let stand at room
temperature for 15 minutes, flip over once.

2. Preheat grill for medium-high heat.

3. Brush grate with oil. Place mushrooms and onion slices on the grill.
Grill 5 to 8 minutes on each side or until tender. Brush mushrooms with
marinade frequently. Top with cheese during the last 2 minutes of grilling.

4. Serve on a whole grain bun.