9 Leftover Foods You're Reheating Wrong

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Casseroles

When it comes to reheating casseroles, the best method is going to be the same one you used to originally cook them—the oven. But there's one step many of you probably skip: letting the casserole come to room temperature. Not doing this will prolong the time it takes for you to reheat the food and could also provoke cracks in your baking dishes, due to the significant temperature difference between a cold fridge and hot oven. To avoid this, take your casserole leftovers out of the fridge at least 30 minutes prior, and let your oven preheat to 350°F. Cover the dish loosely with aluminum foil (this keeps it from getting dry), and stick it in the oven for 20-30 minutes until it's nice and hot. You can remove the foil within the last 10 minutes of reheating.

For individual portions of casseroles, you can get away with reheating them in the miçrowave. If you don't want to lose too much moisture, try covering it with a paper towel and heating for five minutes on a lower power.