If you love the cheesy goodness of hash brown casserole, you're really going to love this lower fat and lower calorie version. It is just as creamy and delicious in a significantly healthier form!
If you don't like Greek yogurt, you can substitute fat free sour cream in its place. Just know that sour cream has more carbs and more calories than Greek yogurt. I can't tell the difference between them, and it doesn't really matter which one you use in the recipe. It will taste good either way.