Marinate portabellas in balsamic vinaigrette for 1-2 hours. Coat mushrooms with enough oil to cover. Season with dried spices.

Grill for a couple of minutes on each side while basting with the marinade.

Variations; Worcestershire sauce, parsley, cilantro, vinegar, A1 sauce, H1 sauce, malt vinegar, gin, horseradish, roasted bell peppers or shallots, vegetable stock, flavored olive oils, hollandaise, chives