Preheat the air fryer to 400°F (200°C) for 5 minutes.

Spray the air fryer basket with non-stick spray.

Place the frozen tater tots in the air fryer basket.

If making half a bag, set the timer for 10 minutes, then turn over the tater tots halfway through and continue cooking for another 5 minutes.

If making the entire bag, set the timer for 15 minutes, then turn over the tater tots every 5 minutes during the cooking process.

For extra crispiness, add extra minutes as desired.

If adding cheese, sprinkle mozzarella cheese on top of the tater tots and cook for an additional 2 minutes at 400°F (200°C).

Once cooked, remove the tater tots from the air fryer and drizzle with ketchup.

Serve immediately for the crispiest results.