Preheat the grill over high heat or the oven to 400 degrees F.
Combine the cubed swordfish with the garlic, oil, lemon zest, rosemary and parsley. Skewer the swordfish alternately with the onions, green peppers and red peppers. Sprinkle the kebabs with salt and pepper. Grill or roast for 12 to 15 minutes. Squeeze the lemon juice over the skewers before serving.
NotesThis recipe was provided by a chef, restaurant or culinary professional and may have been scaled down from a bulk recipe. The Food Network Kitchens have not tested it for home use and therefore cannot make any representation as to the results.