Cover the pork with the Sea salt, black pepper, garlic powder, and onion powder.
Roast the pork according to package directions.
While the pork is cooking, press half of the blackberries through a sieve. Mix the juices with the goat cheese. Discard the seeds remaining in the sieve.
Cut the remaining blackberries in half and combine with the goat cheese mixture. Cover and place in the fridge.
After the pork is done cooking and cool enough to handle, divide the pork into potions to fit on sliders.
Place between a teaspoon and a tablespoon of goat cheese mixture on each side of the slider, place pork on next, then greens.