Remove the leftover pizza from the refrigerator. Preheat the air fryer to 330°F/165°C for 5 minutes.
Place pizza slices in the air fryer basket in a single layer, ensuring the slices do not overlap.
Air fry in the preheated air fryer for 3-5 minutes, until the cheese is melted.
Serve immediately.
Notes
This recipe/method will work to reheat any number of pizza slices that you have, as long as they all fit in the air fryer in a single layer. To reheat a large amount of leftover pizza, work in batches.
Each pizza will be different. Some are thick, some are thin. Keep an eye on the pizza as it cooks, checking on it at the 3-minute mark and then every minute after that so that it doesn't burn.
Thin crust pizza will probably be reheated in 3 minutes, while deep dish or thick crust pizza might take closer to 5 minutes.
You'll know when the pizza is ready when the cheese is melted and the pizza is warm all the way through.
Pro Tip: This recipe can be made in the air fryer unit with a basket or the air fryer oven. If you are using the air fryer oven, use the middle rack and select the "Air Fry" function.
Pro Tip: Check your food as it cooks. Each air fryer runs a bit differently. Sometimes airfying is a trial and error process. Check your food as it cooks to learn your air fryer better! When cooking a new recipe or food items be sure to check your food often to help avoid over/under cooking.