1Combine the cheddar biscuit mix, greek yogurt, self-rising flour, garlic, Italian seasoning, mozzarella, and cheddar cheese in a bowl and mix well, but don't overmix.
2Spread the mixture into a baking dish.
3Pour Alfredo sauce over the mixture and spread it evenly.
4Add chicken on top of the sauce.
5Sprinkle additional mozzarella and cheddar cheese over the chicken.