Is it OK to reheat hash browns the next morning? Hash browns are delicious and delectable, but I do not have time to cook them every morning. I was wondering if it was OK to cook hash browns tonight and them eat them cold or reheat them in the microwave for 10 seconds the next morning? Will I have to keep them in the fridge, or just covered for the night? These are the hash browns that I will be using:
Frozen hash browns like that are already pretty much cooked. When you bake them, you're really just heating them up and crisping the outside.

If you cook some then save them, they're going to lose a lot of that crispiness no matter what you do. If you eat them cold they'll be, well, cold. If you heat them in the microwave, they'll soften even more. If you still like them, go for it.

Safety-wise, it's fine. You do need to keep them in the fridge, as with pretty much any other leftover food.