Portabello Mushroom-Garlic Burgers (4 servings, 4 pts each)

4 portobello musrooms
4 tsp garlic flavored olive oil
salt, pepper
¼ cup balsamic vinegar
½ tsp Italian seasoning
2 tbsp coarse grained Dijon mustar
4 whole wheat English muffins, toasted
4 lettuce leaves
4 tomato slices
4 red onion slices
Grated parmesan cheese

Brush mushrooms with oil and season with salt and pepper. Heat some oil in nonstick skillet and cook, covered, until browned and tender, about 6 minutes on each side. Transfer to plate. Add vinegar and Italian seasoning to skillet. Cook, stirring until slightly syrupty, about 2 minutes. Return mushrooms to skillet and coat with sauce. Spread mustard evenly on English muffine and layer. Sprinkle with Parmesan.