This recipe came from the need to grab something to eat while working on the computer. The ingredients were just about the only edible foods left in the fridge. I have to say this is one of the tastiest, most satisfying things I've ever whipped up for lunch! The sesame pita bread came from Trader Joes, as did the pre-marinated Tri-Tip. You could use any leftover cooked meat, and adjust the flavorings infinitely. Don't change the apples and onions, though, they are what brought it all together. Easy to eat in one hand, leaving one free to control the mouse!