In A Bowl, Combine The First Nine Ingredients; Set Aside. In A Jar With Tight-Fitting Lid, Combine The Oil, Vinegar, Mustard, Honey, Lime Juice, Garlic Powder, Salt, Cumin And Cayenne; Shake Well. Line Pita Halves With Lettuce; Fill Each With About 1/3 Cup Vegetable Mixture. Drizzle With Dressing.