In a large bowl, marinate the meat with salt, pepper, and cumin for at least 30 minutes.
Heat a grill or grill pan over medium high heat. Grill the meat until cooked through and slightly charred on both sides. Remove from heat and set aside.
In a separate bowl, mix together the pineapple chunks, red onion slices, jalapeno pepper, cilantro leaves, lime juice, salt, and pepper.
Grill the tortillas for a few seconds on each side until slightly charred and warm.
Assemble the tacos by placing a portion of grilled meat onto each tortilla, followed by a generous scoop of the grilled pineapple salsa.
Chefβs Insight
Use fresh, ripe pineapple for a sweeter salsa.
Notes
Adjust the spiciness of the salsa according to preference.