Marinade the chicken thighs and legs in the yoghurt, Salt and Pepper, Lemon, Cumin Powder, Thyme, Oregano, Smoked Paprika and Garlic Powder, for 30 minutes to 4 hours.
Add the red onion slices to a tray, season and drizzle over the olive oil.
Arrange the chicken and chickpeas over the onion slices.
Preheat oven to Gas Mark 6, 200 degrees C. Bake uncovered for 40-45 minutes. Sprinkle over a little chopped parsley if you like!