Place Smithfield Garlic & Herb Loin Filet in bowl of a slow cooker. Cook in low for 8 hours or high for 4 hours. Remove and shred.
While pork is slow cooking, you can prepare the pineapple salsa by tossing all ingredients together. Store in the fridge until ready for serve.
When ready to assemble the nachos, preheat the broiler. Spray a baking sheet with oil. Scatter the chips on the baking sheet and sprinkle with cheese. Broil until cheese is melted, just a couple minutes.
Serve with pineapple salsa on the side or sprinkle on top!