01 - Preheat a grill or oven to medium-high heat. Thread chicken cubes, zucchini slices, and red bell pepper pieces alternately onto four skewers.
02 - Brush skewered ingredients evenly with olive oil and sprinkle with garlic powder, ensuring all sides are coated.
03 - Grill the skewers for 12–15 minutes, turning occasionally, until the chicken is cooked through and vegetables are tender. Alternatively, bake on a lined sheet in a 400°F oven for 15 minutes, turning once halfway.
04 - In a bowl, combine yogurt, garlic powder, and lemon juice. Mix until smooth and refrigerate until ready to serve.
05 - Arrange cooked skewers on a serving platter and accompany with the garlic yogurt dip.