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How to Reheat French Toast Casserole (5 Methods)

French toast casserole is a delicious breakfast dish that is perfect for special occasions or lazy weekends.

The baked casserole combines all the flavors of classic French toast in a convenient and tasty bake that can be served to your family or guests.

This make-ahead breakfast recipe is easy to prepare and can be stored in the fridge or freezer for later use.

However, reheating french toast casserole can be tricky as it can become dry, mushy, or burned if not done correctly.

In this blog post, we will discuss five methods on how to reheat french toast casserole along with some leftover french toast casserole ideas.

How to Reheat French Toast Casserole

Reheating in the Microwave

The microwave is probably the easiest and quickest way to reheat French toast casserole. Follow these simple steps to heat up your breakfast in minutes:

  1. Place a single serving of the leftover French toast casserole on a microwave-safe plate.
  2. Cover it with a damp paper towel.
  3. Microwave on high for 30 seconds increments until heated through.


  • Avoid microwaving the dish for too long as it may become mushy.
  • Check every 30 seconds and add additional time until you get your desired temperature.


  • Quick
  • Easy
  • Ideal For Small Servings


  • Unevenly Heated sometimes.

Reheating in the Oven

Reheating French Toast Casserole in the oven gives consistent results while maintaining its texture and moistness.

  1. Preheat oven at 350°F
  2. Transfer casserole from fridge directly into preheated oven and heat up till you get your desired temperature (usually takes around 20 minutes). Do not overbake to maintain its taste and moisture


  • If you are reheating multiple servings, place the casserole in an oven-safe dish.
  • Cover the dish with aluminum foil to prevent it from drying out.

A comparison between microwave and oven reheating methods:

Microwave: Very Fast, Quick Results, Ideal For small servings

Oven: Slower But Provides better results, Better For Multiple Servings


  • Consistent Results
  • Maintains texture and moistness


  • Takes Longer Than Microwave

Reheating on the Stovetop

Reheating French Toast Casserole on the stovetop can be a little bit more involved than using a microwave or oven but is another great technique to use while reheating this delicious breakfast recipe.

  1. Heat a large skillet over low heat.
  2. Cut French toast casserole into slices and place them onto a heated skillet.
  3. Cook for 2 – 3 minutes per side until heated through.


  • Use non-stick pan or apply butter/oil to ensure that it doesn’t stick or burn.
  • Low Heat ensures thorough heating of the french toast Casserole without Burning It!


  • More Controlled And Direct Method To Reheat
  • Doesn’t Dry Out The Dish As Much As Oven Heated Dishes Can Get Sometimes


Takes longer than some other methods discussed earlier

Reheating Using a Toaster Oven

Toaster ovens are great if you’re only heating up one or two portions of French Toast Casserole as they are smaller in size than full-sized ovens and yet give similar results.

  1. Preheat toaster oven at 350°F.
  2. Put pre-cut casserole slices directly onto toaster rack / tray
  3. Allow it to get completely heated (usually takes about 10 minutes)

Tips One should keep a regular check on the dish while heating to avoid burning it because the toaster oven can get really hot sometimes.

Advantages of this method over other methods discussed earlier:

  • More Control On direct heating
  • Easy to use
  • Preheat time is less

Problems One Might Face While Using Toaster Oven:

  • Might Be inadequate for larger servings
  • Making it Infeasible For Families.

Reheating Using an Air Fryer

Air Fryers Are A Relatively New Technology That Has Impressed People All Over The World. They Might Also Be Good For Reheating French Toast Casserole.

  1. Preheat your air fryer at 350°F.
  2. Put your pre-cut casserole slices directly into the basket and place the basket in the fryer
  3. Cook for 5 minutes or until heated through by flipping and checking every 30 seconds or so


  • Check on the French Toast Casserole regularly.
  • Adjust the cooking time as air fryers vary in strength.

Benefits Of Using An Air Fryer Over Other Methods Discussed Earlier:

  • Helps You Achieve Crispy Outside And Warm And Juicy Inside
  • High Efficiency As Per Power Consumption


In conclusion, there are different ways to reheat French Toast Casserole based on your preferences and available appliances.

We have shared five methods with you along with some tips and tricks to ensure that your breakfast casserole reheating is a success every time! It’s important to choose the right method along with proper storage and safety measures when handling leftovers.

By following our guide and using these reheating instructions for French toast bake, you can enjoy delicious leftover French toast casseroles while simultaneously keeping food wastage at bay.

jenny happy muncher
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Jenny has always been passionate about cooking, and she uses her platform to share her joy of food with others. Her recipes are easy to follow, and she loves giving tips and tricks to help others create their own unique culinary creations.