That guacamole might be allowable on a strict diet plan seems at best ludicrous, but we have been consuming guac all over town and still losing weight. Might have something to do with the two hours of aerobic activity we do every morning and the fact that we're forced to slather the Mexican munchie on celery sticks, but hey, it's tasty, good for you and most important: no prohibido. So we feel qualified to make the Best Of call on this appetizer, which has gone considerably upscale (read: expensive) throughout the onset of our fat years. Trece's guacamole is every bit as expensive ($12) as it is exemplary, which is evident from the restaurant dedicating several cart-wheeling guacamole chefs to perform its Guacamole Live programming. Avocados are sliced, diced and mushed together with cilantro, serrano and habanero peppers, lime and garlic. Also mixed into the brew are onions and tomatoes, roasted, not raw, which may make the difference in flavor (smoky) from your run-of-the-mill expensive guacamole—also the long, narrow homemade chips—yes, we tasted a few despite violating the sacred covenant of our diet. But it was for the best, right, and 15 extra minutes on the treadmill took care of those crispy dippers—though their memory will never, ever be erased.