Place 4 dried guajillo chiles and 2 dried chiles de árbol into a wide glass bowl
Pour 2 cups of boiling water over the dried chilies and let them sit for 30 minutes
Combine all of the marinade ingredients (including the rehydrated chilies) into a large blender or food processor and pulse until smooth
Slice a 2 pound pork tenderlion into 1/2 inch rounds
Pound each slice of pork down to about 1/4 inch thickness using a meat tenderizer
Layer the pork and marinade in a large glass bowl ensuring that all of the pork is coated in marinade
Cover the bowl with plastic wrap and refrigerate for 90 minutes
Preheat your oven to 350 degrees
Place the other half of the whole pineapple into the bottom of a square baking dish
Press a long skewer into the center of the pineapple so that it stands upright vertically
Layer the marinated pork over the skewer (see photos above)
Bake at 350 degrees on a lower rack for 90 minutes
Carefully remove the pork from the skewer and cut into bite size pieces
Assemble remaining salad ingredients
Serve with some creamy jalapeño ranch and lime wedges