DO-AHEAD TIP: Marinate turkey for at least 4 hours or overnight (see recipe). If using bamboo skewers, presoak them in water for 30 minutes, to prevent burning on the grill.
In a large bowl, whisk together lemon juice, salt, garlic and crushed red pepper flakes. Gradually whisk in the olive oil and then stir in the dried oregano.
Add turkey and toss to coat. Cover and refrigerate for at least 4 hours or overnight. Preheat grill to MEDIUM-HIGH. Alternately thread turkey cubes and vegetables onto skewers.
Grill kabobs for 20 minutes, turning occasionally, or until turkey is cooked through. Serve hot and enjoy!!!