Hash browns are usually a breakfast thing--crispy and served with eggs. I love what happens when I combine them with other ingredients and bake into a casserole, mixing all the flavors and textures into one delicious cheesy, crispy and creamy bite!
Ensure your frozen hash browns are fully thawed and well-drained. Excess moisture will lead to a soggy casserole rather than the desired crispy-creamy texture. For the onion, coarsely grating is specified, but for a smoother texture and integrated flavor, consider finely grating it or even briefly sautéing it until translucent before mixing, which also tames its raw bite. The combination of sweet paprika and cayenne offers a gentle warmth; for a smoky depth, a touch of smoked paprika would be excellent. Baking until the edges are deeply browned and crispy is paramount for texture. If the top isn't as golden as desired, a brief minute or two under the broiler at the very end can create a beautifully crisp crust, but watch it closely to prevent burning.