When you take over the grill tonight, test out a vegetarian barbecue option that's not so redundant: a meatless take on the New Orleans muffuletta sandwich. With crusty bread and warm, caramelized slices of eggplant, zucchini, red bell pepper, and mushrooms, this sandwich is a scrumptious, filling, and nutritious variation of the hearty Louisiana original. For extra creaminess and crunch, you can toast the bread and the provolone on the grill, too. Make this your new favorite veggie sandwich and
. Serves 4.