Variations; Parsley, mint, basil, oregano, marjoram, chives, scallions, leeks, ramps, shallots, dill, red onion, yellow onion, shallots, celery, celery seed, fennel, fennel seed, olive, olive oil, butter, brown butter, bacon, pancetta, prosciutto, salami, capicola, pastrami, ham, pepperoni, sopressata, pepperjack cheese, mozzarella, parmesean, romano, gruyere, parmigiano reggiano, pecorino, ricotta, swiss, provolone, giardenera relish, pepperoncini, peppadew, zucchini, yellow squash, eggplant, leeks, ramps, lemon, horseradish, diced tomatoes, slivered garlic, roasted garlic, asparagus, arugula, spinach, capers, cauliflower, mushrooms, ratatouille,