Thaw fish, if frozen. Rinse fish; pat dry with paper towels. Sprinkle Jamaican jerk seasoning over both sides of each fish fillet; rub in with your fingers. Measure thickness of fish.

For a charcoal grill, place tortillas on the greased rack of an uncovered grill directly over medium coals; grill for 1 minute or until bottoms of tortillas have grill marks. Remove from grill and set aside. Place fish on the grill rack directly over the coals. Grill fish for 4 to 6 minutes per 1/2-inch thickness or until fish flakes easily when tested with a fork, turning once halfway through grilling. (For a gas grill, preheat grill. Reduce heat to medium. Place tortillas on greased grill rack over heat. Cover; grill as above. Remove tortillas from the grill and add fish; cover and grill as above.) Coarsely flake the fish.

Meanwhile, in a medium bowl, toss together spinach, tomato, mango, cilantro, chile pepper, and lime juice.

To assemble, place tortillas, grill mark sides down, on a flat work surface. Top each tortilla with some of the spinach mixture and flaked fish. Roll up tortilla to enclose filling. Cut each in half to serve.

Because chile peppers contain volatile oils that can burn your skin and eyes, avoid direct contract with them as much as possible. When working with chile peppers, wear plastic or rubber gloves. If your bare hands do touch the peppers, wash your hands and nails well with soap and warm water.