You can reheat mac and cheese in a crock pot.
You can simply place the mac and cheese in the crock pot and turn it on the low setting and slowly heat the mac and cheese for around 2 hours.
Just be sure to stir the mac and cheese often while it's reheating to avoid it sticking in the crock pot.
You can also reheat mac and cheese in the microwave or in the oven.
To reheat the mac and cheese in the oven follow the below directions.
Place the macaroni & cheese into an oven-safe dish.
Make sure to only take out what you're going to use.
Add 1 tablespoon of milk per cup of mac and cheese and mix to incorporate as much as possible.
Cover the dish with aluminum foil and place in the oven at 350°F for 20-30 minutes, or until heated through.
Slow cookers are one of the best tools for reheating leftovers.
You can even use this method to reheat frozen mac and cheese.
Just keep the mac and cheese in the slow cooker for about 1-2 hours, stirring every 20 minutes or so to break up the noodles.