How Long Does It Take to Reheat a Casserole?

POPSUGAR Photography | Anna Monette Roberts
POPSUGAR Photography | Anna Monette Roberts

Enchiladas, baked pasta, and casseroles alike share at least three killer qualities: they're cozily delicious, they're great for feeding a crowd, and they almost always reheat well. And if you're someone who gets just as excited for leftovers as you do the day-of dish, you know just how important it is to find a meal that does the latter.

With Thanksgiving coming up, you'll likely be dealing with lots, and lots, and lots of leftovers. But what do you do with them? And how do you make them taste just as good? We're here to help — because ensuring your food tastes just as delicious the day after cooking doesn't have to be hard. It just might require you to do some research. For your convenience, though, below is a step-by-step guide on how to heat up single portions and entire casseroles with ease.

If you need some ideas or inspiration for baking your own tasty casserole dish first, you have some options. You can try Chrissy Teigen's green-bean casserole, you can bake this french-toast casserole for some breakfast, or you can try to emulate Olive Garden's famous lasagna classico. We promise your stomach will thank you for any of those options.

How to Reheat a Single Portion of Casserole

Your microwave is the best tool. Slice and transfer a portion to a microwave-safe dish, loosely cover, and microwave until hot, checking after one minute and then in 30-second intervals afterward. The density of the casserole, the size of the portion, and the power of your microwave will make the time vary, but typically a minute and a half to two minutes will do the trick.

How to Reheat an Entire Casserole

If you have the entire meal (or a large portion of it) in its original vessel, pull the casserole dish out of the fridge 30 minutes to an hour before heating in the oven while simultaneously preheating the oven. Bringing it up to room temperature might seem like a fussy, superfluous step, but this reduces the amount of time it'll need to spend in the oven, promotes even heating, and protects your bakeware. (Ceramic and even Pyrex-type casserole dishes may crack if shocked by the extreme temperature difference between a cold fridge and a hot oven without the in-between buffering.)

As for the oven temperature and time needed to reheat, it'll vary depending on the size of the casserole dish and the density of its contents, but a safe bet is to reheat at a moderate temperature (325°F-350°F) for 20-30 minutes, or until hot throughout. To prevent moisture loss, cover the casserole dish tightly with tinfoil or the dish's lid until the last five to 10 minutes of heating.

Once warmed through, consider finishing reheating under the broiler for a crisper texture. (If the casserole is dried-out looking or already verging on too brown, skip this step.) To do this, turn your oven's dial to broil, place the casserole dish on the top rack (six to eight inches from the heating element is best), and check things frequently, as browning will happen rapidly and burning isn't far behind.