How to Reheat a Grilled Cheese Sandwich

You have found that grilled cheese sandwich that you left in the back of the refrigerator.  You think about throwing it away, but food has gotten expensive.  How can you reheat that grilled cheese sandwich so that it tastes as good as it did when you made it?

Cheese is a very versatile product that can be cooked in different ways with different results.   In fact, there is disagreement as to whether toasted cheese sandwiches are the same as grilled cheese sandwiches.  The answer can only be determined by your taste buds.   

There are four ways to reheat a grilled cheese sandwich: in the microwave oven, in the regular oven, in a toaster oven, or on a griddle.  The grilled cheese sandwich will taste better if you reheat it using the same technique that you did when originally cooking it.  The microwave oven is the least recommended method.

The Microwave Oven

Using the microwave oven to reheat your sandwich is the least appetizing of all methods.  It will leave your sandwich soggy and the consistency of the cheese will be too runny.  If you insist on microwaving your leftover grilled cheese sandwich, use these recommendations.

How to Reheat a Grilled Cheese Sandwich in the Microwave

  1. Wrap the sandwich in a paper towel or napkin
  2. Apply an extra layer of butter to the bread.
  3. Microwave only for 30 seconds.
  4. Cover the sandwich with mustard to disguise the disgusting flavor.
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Seriously, a grilled cheese sandwich should be grilled, even in the reheating process.  Leave the microwave for cooking frozen burritos or reheating your coffee.

The Conventional Oven

You can reheat your grilled cheese sandwich in the regular oven.  Keep in mind, however, that you have to pay the energy bill, and the electricity used contributes to global warming.  On the plus side, your reheated sandwich will come out crispy and delicious.

How to Reheat a Grilled Cheese Sandwich in the Regular Oven

  1.  Preheat the oven to 400 degree
  2.  Find a baking pan.
  3.  Lightly coat the baking pan with butter.
  4.  Place the sandwich on the baking pan.
  1.  Cook the sandwich for 3 minutes.
  2.  Turn the sandwich over and cook for another 3 minutes.

Enjoy your sandwich knowing that you could have cooked it without being as wasteful on your budget and as detrimental to the health of the planet.

The Toaster Oven

Reheating your grilled cheese sandwich in the toaster oven makes sense.  Your sandwich will be hot, crispy and delicious, and you will save energy over using the conventional oven.  In addition, you can cook both sides of the sandwich at once, saving energy and time.

How to Reheat a Grilled Cheese Sandwich in a Toaster Oven

  1. Put some fresh butter or margarine on the bread.
  2. Place the sandwich in the toaster oven.
  3. Bake at 400 degrees for 4 minutes.

See how simple it is to use your toaster oven to reheat your grilled cheese sandwich? It is so easy that even your roommate could do it.  And without making an enormous mess!

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A Griddle

A griddle is probably the same way you made your grilled cheese sandwich, and using it to reheat it will give the best results. You can use a conventional stove top, an electric skillet, or even an electrical sandwich maker to reheat your grilled cheese sandwich.

How to Reheat a Grilled Cheese Sandwich on a Griddle

  1. Preheat the griddle to approximately 400 degrees.
  2. Add a small slice of butter to the griddle.
  3. Put the leftover grilled cheese sandwich in the butter
  4. Cook for 2 minutes.
  5. Flip the sandwich and cook for 2 minutes.

Reheating the grilled cheese sandwich takes a little more effort and time than heating it up in the toaster.  However, the crispiness of the bread and the consistency of the cheese will be just as good as when you originally made the sandwich.


A microwave oven, a conventional oven, a toaster oven, or a griddle serve well to reheat a grilled cheese sandwich.  The toaster oven and the griddle make the most sense because they recreate the original flavors and are convenient.  The microwave oven is the most convenient way to reheat a grilled cheese sandwich, but the result will be nearly inedible.   

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