La Tapatia Taqueria's poor boys are practically an entire Mexican meal between two fresh buns. Along with a belt-bustingly generous serving of one of 12 meats or a veggie, the sandwich is smeared with refried beans and sour cream. It also includes slippery avocado slices (which sometimes escape the sandwich when you're taking a big bite), lettuce and tomatoes. Shredded cheese is 25 cents extra. Some places like to skimp on shrimp. Not La Tapatia. The shrimp poor boy is loaded with medium shrimp that are cooked to where they're still firm and juicy, not soggy. The pastor (marinated pork) poor boy is similarly loaded, and its sweet-hot marinade makes the cooked-till-falling-apart pork a taste to remember. Other meats include chicken breast, beef, lean pork, barbecue, beef brains, lean breaded meat, goat, beef tongue and ham. And these poor boys won't plunder your pocketbook. The shrimp and chicken breast sandwiches are $3.75; the rest cost $2.70. True poor-boy prices.