Probiotic yogurt pairs perfectly with prebiotic onion in this citrusy, peppery meal. Serve the components separately, or fold them all into a wrap with the naan.
Preheat grill to very high (500°F and up). Toss together chicken, turmeric, 2 Tbs. of the oil, 1/2 tsp. of the salt, and 1/4 tsp. of the pepper in a bowl until well coated. Thread chicken evenly onto four 12-in. metal or presoaked wooden skewers. Place kabobs on oiled grates; grill, covered, turning occasionally, until cooked through, 8 to 10 minutes. Remove from grill; cover to keep warm.
Stir together yogurt, garlic, and 1 Tbs. of the lemon juice in a small bowl; set aside. Toss together cucumber, onion, mint, and remaining 1 Tbs. oil, 1/4 tsp. salt, 1/4 tsp. pepper, and 2 Tbs. lemon juice in a medium bowl. Serve kabobs alongside yogurt mixture, cucumber mixture, and naan.