Place a Multix Air Fryer Paper Liner Sheets into the basket of your air fryer.
In a bowl, combine the beef mince, onion, garlic powder, tomato sauce, mustard, salt and pepper until just mixed.
Lay one rice paper sheet on a clean work surface and lightly brush both sides with the whisked egg yolk to soften it slightly.
Place about 2 tablespoons of the beef mixture into the centre and top with half a slice of cheddar cheese.
Brush a second rice paper sheet with egg yolk and place it over the top. Fold the edges in tightly to create a sealed parcel. Repeat with the remaining ingredients.
Arrange the cheeseburger parcels on the Multix Air Fryer Paper Liner Sheets in a single layer and lightly spray with olive oil.
Air fry at 200°C for 12–15 minutes, turning halfway through, until golden, crispy and the beef is cooked through.
Serve with burger pickles, shredded lettuce and your favourite burger sauce for dipping.