# How Long to Reheat a Casserole

- Link: https://lifeandwork.blog/how-long-to-reheat-a-casserole/
- Published: 2026-09-28T20:15:18-05:00
- Author: Bert Swope

Many people are surprised when they learn how to reheat a casserole in the oven.
Although many people will instinctively know how long to cook a casserole, very 
few people can tell you what temperature it needs to be cooked at in order for it
to be safe to eat. The safest way to cook a casserole is in a glass baking dish 
with a lid. If you are making a casserole that will be served cold, make sure that
it is cooked well through but not uncooked before serving.

How long to cook a casserole in ovens with covers depends on how large the casserole
is and how cold the casserole is when reheating is started. A casserole not immediately
eaten upon removal from the oven will typically need to be reheated. To reheat a
casserole in an oven:

 * Preheat the oven to 325°F-350°F.
 * moisten the top of the casserole a tablespoon or two to help generate steam.
 * covered the casserole dish.
 * Place casserole on the center shelf of the oven and reheat at 325°F-350°F for
   20-30 minutes. This cooking time may need to be shortened for smaller casseroles.
 * Check the casserole with a food thermometer about every ten minutes until the
   center of the casserole achieves a food safety temperate of 165°F.
 * Remove the casserole from the oven and server immediately.

[How do I reheat a casserole in the oven?](https://www.youtube.com/watch?v=DBBG2dc34qA)

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