Prepare the marinade: In a bowl, mix the yogurt, Tikka Masala spice mix, garlic, ginger, and a pinch of salt. Add the chicken pieces and coat well. Let it marinate for at least 1 hour, preferably overnight in the refrigerator.
Cook the onion and spices: Spray a large pan with low-calorie cooking spray. Add cumin seeds and cook until they start to pop. Add onions and cook until they are soft and golden. Add paprika and turmeric, and stir well.
Cook the chicken: Add the marinated chicken to the pan and cook over medium heat until the chicken is browned.