Instructions

1. Whisk together olive oil, lemon juice, oregano and garlic until emulsified. Season to taste with kosher salt and freshly ground pepper. Pour into a gallon resealable plastic bag or a dish large enough to accommodate the swordfish.
2. Place swordfish cubes into bag or bowl. Seal bag and turn several times until the fish is well coated or place in bowl, stir, and cover in plastic wrap. Marinate outside the refrigerator for half an hour, or refrigerate for 2-3 hours, turning the bag or stirring contents of bowl occasionally.
3. Heat gas or charcoal grill to medium-high heat. String kebobs, alternating swordfish, tomatoes and peppers, onto skewers. On a clean, well-oiled cooking grate, grill 8 to 12 minutes, turning skewers cook evenly. Swordfish is done when a white substance appears on the fish.