6 open burgers onion mushroom Recipes

portabella mushrooms, stems removed, light balsamic vinaigrette salad dressing, salt, pepper, high-fiber whole wheat dinner rolls , split open, red onion , cut into 8 slices, tomatoes , cut into 8 slices

olive oil, sweet onion, sliced and separated into rings, presliced mushrooms, salt, balsamic vinegar, paprika, salt, dried thyme, ground red pepper, freshly ground black pepper, english muffins, split and toasted

olive oil, sweet onion, sliced and separated into rings, presliced mushrooms, salt, balsamic vinegar, paprika, dried thyme, ground red pepper, fresh ground black pepper, english muffins, split and toasted

lean ground lamb, minced fresh or 2 tsp dried mint, ground cumin, salt, freshly ground black pepper, olive oil, divided, diced peeled eggplant (about 1 lb), vertically sliced vidalia or other sweet onion, sliced shiitake mushroom caps (about 4 oz), balsamic vinegar, thick) slices tomato, french bread rolls, halved and toasted