When the chicken is done, remove from the pan and set aside.
Add the tomato and onion mix to the pan. Cook until the onions are browned and the tomatoes are wrinkled.
Add the chicken broth. Be sure to stir and scrape the good bits stuck on the bottom and side of the pan as that's where the flavor lies.
2/3 Cup Chicken Broth
Bring this mixture to a boil and add the cottage cheese, sour cream, and most of the cheese. Reserve some for the topping. Once the cheese is melted and incorporated, add the spinach and cook until wilted.
2/3 Cup Cottage Cheese, 1/3 Cup Sour Cream, 3-4 Cup Baby Spinach, 3/4 Cup Mozzarella Cheese
Add the chicken back into the pan to reheat. Serve hot and enjoy!