Crisper Tray

It allows for air circulation around food, similar to an air fryer, leading to even cooking and crispy textures without the need for excessive oil or fat. 
The set usually consists of an elevated mesh basket that allows air to circulate and excess oil/grease to drip through, and a bottom tray to catch any drippings, keeping your oven clean. 
 It can be used for various foods, including french fries, chicken, vegetables, and more, offering a healthier alternative to traditional frying methods.