Whisk together 1/4 cup olive oil and the spices.
Cut the chicken breasts into 5-6 pieces, and the thighs into 3-4.
Marinate the chicken at least 1 hour, but preferably overnight.
Barbecue the chicken for 20 minutes, turning every 5 minutes. Remove and let cool.
Cut the chicken into shawarma-like pieces.
Saute the chicken in the cooking oil until it begins to crisp.
Serve chicken over rice, with tomatoes, cucumbers, and lettuce. Top with yogurt.