Start by preheating the oven to 350F. Line an oven safe tray with parchment paper or foil. Transfer your leftovers in the lined tray and cover it loosely again with foil.
Reheating tater tot casserole or any food, for that matter, is way faster in the microwave. However, there’s also a high chance that it will impact the texture of your leftovers.
Start by preheating a skillet on the stove top to medium heat. Add a little olive oil in the pan before you put in your casserole to prevent it from drying out or sticking to the pan.
Preheat your air fryer to 350F and wrap your casserole in aluminum foil. Place your leftovers in the air fryer basket and heat it for about 5 minutes until it’s warm and crispy.