1Poach chicken breasts in boiling water with chicken bouillon for 2-3 minutes, then turn off the heat, cover, and let sit for exactly one hour.
2Shred the cooked chicken breasts.
3In a bowl, combine non-fat yogurt, non-fat cottage cheese, Frank's Hot Sauce, onion powder, garlic powder, salt, and black pepper. Blend until smooth.
4Add shredded chicken, diced celery, and sliced green onions to the mixture, and stir well.
5Pour the chicken mixture into a baking dish, spread evenly, and top with half of the shredded mozzarella cheese.
6Bake at 375°F for 25 minutes, then broil for the last 3 minutes to crisp the top.