Preheat the air fryer to 375°F (190°C) for 3–5 minutes.
A preheated basket helps the patties brown better.
Lightly oil the basket with a quick spray. This reduces sticking and speeds up crisping.
Season the frozen patties on both sides. Sprinkle with salt, pepper, and a pinch of garlic and onion powder.
Press seasonings in so they stick.
Place patties in a single layer in the basket. Leave a little space between each one for air circulation.
Air fry for 6–8 minutes, then carefully flip. This first side sets the crust and helps keep juices inside.
Continue cooking for 5–8 minutes after the flip.
Cook time varies by thickness and air fryer model. Third-pound patties generally take closer to the high end.
Check doneness with a thermometer. Aim for an internal temperature of 160°F (71°C) for ground beef. This ensures food safety and a juicy bite.
Add cheese in the last 30–60 seconds. Open the basket, top each patty, and air fry just until melted.
Toast the buns for 1–2 minutes in the empty basket if you like them warm and crisp at the edges.
Assemble with your favorite toppings and condiments.
Serve hot.