Stir together bitter orange marinade, honey, olive oil, garlic and seasoning; set aside. Evenly thread pork, peppers and onions onto skewers; place kebabs in rectangular baking pan or dish. Pour marinade mixture evenly over top; cover and refrigerate for 30 minutes. Turn kebabs; cover and refrigerate for 30 minutes.
Preheat grill to medium-high heat; grease grate well. Cook kebabs, turning occasionally, until pork is cooked through, 12 to 14 minutes. Sprinkle with cilantro just before serving.
Substitute chicken or beef for pork if desired.