Spray counter lightly with non-stick cooking spray. Roll each Texas roll or 2 dinner rolls combined into a thin 8-inch circle.
Brush grill or grill pan with olive oil. Grill each roll, on both sides, about 2-3 minutes. Sprinkle 4 of the grilled rolls with 1/2 of the cheese.
Combine ham, pineapple and cilantro and toss together until well combined. Divide ham mixture equally between the 4 cheese topped grilled rolls.
Sprinkle remaining cheese over the top of the ham mixture. Place the remaining 4 grilled rolls over the cheese topped ham mixture. Place back on grill and grill until cheese is melted. Cut into wedges and serve..