These Greek Chicken Kabobs with Tzatziki Sauce are savory, flavorful, and a delicious summer dinner idea! Made with chicken, bell peppers, red onions, and zesty lemon, these kabobs are a healthy dinner dream come true. Oven roast or grill them (your choice!) and serve them with a creamy Tzatziki sauce over rice, quinoa, salad, or any way you want!