If you are a vegetarian, then you know how to put together a wonderful casserole without meat or with substitute ingredients. What definitely characterizes this compound is that it is very juicy when you prepare it.

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The casserole is also a great dish that you can make in advance—freeze it and reheat later. This way, you will save yourself a lot of time, and you will have a quick lunch when you are in a hurry.

We suggest that you cut the casserole into the meals you will need before freezing and freeze them separately. It will make your thawing job easier later, and you will have several lunches.

Reheating Casserole In An Oven

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The oven is an excellent choice for reheating the casserole, especially if you have several pieces that you need to heat up at once. 

In the oven, the dish will heat up evenly, and you will avoid drying out. The method is straightforward as you just need to cover the pan during heating to preserve the juiciness and prevent the edges from burning. 

Step 1: Let the Casserole Rest at Room Temperature

It is always good to let the casserole stand for a while at room temperature. If circumstances allow, take it out from the refrigerator some 20 minutes before heating to allow it to temper. 

Step 2: Preheat the Oven to 350 °F

Preheat the oven to 350 degrees Fahrenheit. The preheating time of the stove is also the moment when the casserole can be tempered, so be sure to take it out of the fridge if you haven’t already.

Step 3: Place the Casserole Leftovers in a Baking Pan and Cover

If you have one larger piece or are slightly thicker pieces, we recommend cutting them into two or four pieces, depending on the size. This will allow the interior to heat up more evenly.

Then, insert the casserole into the baking tray and cover with aluminum foil. The foil is vital in order to preserve the juiciness, but also in order not to burn the edges of the casserole.

Step 4: Bake for about 20 Minutes

Again, depending on how thick the casserole is, adjust the baking time. It usually takes 20 minutes, but if you have smaller or thinner pieces, be sure to shorten the baking time to 15 minutes. 

Once ready, take the casserole out of the oven, let it relax for two to three minutes and serve. Be careful not to burn yourself while removing the aluminum foil. 

Reheating Casserole In A Microwave

If you only have one piece of casserole leftover, it is quite uneconomical to use the oven. So use the microwave freely, and warm up your lunch in a few minutes. 

Here are the steps you need to take when warming up.

Step 1: Cut the Casserole into Smaller Pieces

When using a microwave oven, it is even more important to cut the casserole into smaller pieces. The exterior will heat up very quickly, and the interior of the dish will remain almost completely cold. So, cut the casserole into smaller pieces or slices.

Step 2: Put the Leftovers in a Heating Container

Use only a container that is microwave safe, so you don’t risk it being destroyed in the microwave. Place the sliced pieces in a bowl and spread them loosely a little so that each part is heated evenly.

Cover the container with plastic wrap that can be used in the microwave, but leave a small opening so that the steam can escape freely.

Step 3: Heat for about 2 Minutes

It will take you about 2 to 3 minutes to fully heat the casserole. You can first turn on the microwave for one minute using the preheating program you have on the device.

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Take out the casserole, turn the pieces as needed to heat them on all sides, and put it back for another minute. Then, check that it is heated enough. If not, return for another 30 seconds, and then an additional 30 seconds if needed.