Don't be fooled by the emptiness of Avila's (1823 E. Sample Rd., Lighthouse Point, 954-942-7700). The deli case in the front might have nothing in it. The two scarred table-and-chair sets might have no one sitting at them. The tortillería might have no guacamole, depending upon avocado season. But you can count on a few things: Friendly service, super prices, and made-to-order tacos al pastor, a group of four warm corn tortillas stuffed with seasoned pork. And if you're lucky, you can also score a side of grilled cactus salad, a less-than-common dish 'round these parts. So play your role and bring with you something else that's empty -- like your stomach.