Chicken, Mango, and Piña Skewers

Position oven racks in the upper and lower third of oven; preheat to 450°F. Place onions, bell peppers, mango, and pineapple in a large bowl. Add oil, lime juice, granulated garlic, pepper, and salt; toss to coat. 

Stir chicken seasoning ingredients together in a small bowl. Place chicken in a medium bowl. Add spices, oil, and lime juice and toss to coat. Season with salt to taste.

Line a large rimmed baking sheet with foil; set a metal rack inside baking sheet. Working with 1 skewer at a time, add 1 piece of pineapple followed by a red or green bell pepper (alternate so half of skewers have 1 red and 2 green, and half have 2 red and one green), 1 or 2 pieces of onion, 1 piece of mango and finally 1 piece of chicken. Repeat threading on each skewer 2 more times. Place on prepared rack. Repeat with remaining 7 skewers. 

Roast skewers on lower rack of oven for 14 minutes. Using tongs, turn skewers over and roast until chicken is cooked through, 14 more minutes. Transfer baking sheet to the upper rack and turn on broiler. Broil on high until fruit, vegetables, and chicken are lightly golden in spots, 3 to 4 minutes. Place skewers on a serving platter, sprinkle with flaky sea salt, and garnish with cilantro and lime wedges.