1. Adjust the temperature of your smoker to 212°F (100°C).
2. Generously season your pork with garlic salt and pepper according to your preference, then position it on the grill. Smoke the pork for 2 hours.
3. After 2 hours, adjust your smoker's temperature to 356°F (180°C). Continue cooking for an additional hour.
4. While your pork is cooking, take out a bowl and add your avocados. Use a fork to mash them, then add some salt and pepper.
5. Prepare your pineapple by chopping it into small chunks. Dice the red onion, finely chop the cilantro, and slice the radishes in half.
6. Your pork is ready when the internal temperature reaches 145°F (63°C). Take it off the grill and slice it into strips.
7. Begin assembling your tacos by putting a corn tortilla down as the base. Add a layer of mashed avocado, followed by the sliced pork. Top it off with pineapple and red onions.
8. Finalize your tacos with the chopped cilantro and sliced radishes as garnishes and then serve.