Greek Chicken Kabobs {Easy & Flavorful!}

Ingredients (14)

• 2 lbs boneless and skinless chicken breasts or thighs
• 1 large zucchini
• 2 large bell peppers
• 14 grape or cherry tomatoes
• 28 Kalamata olives
• 1 large red or white onion
• 2 large garlic cloves
• 1 lemon
• 2 tbsp olive oil
• 1 tbsp oregano
• 1 1/4 tsp salt
• 1 tsp ground black pepper
• Cooking spray
• 14 short skewers or 7 long ones