Cook rice according to package directions, then stir together with black beans, salsa and cheese.
Spread 1/3 cup rice mixture just below center of each tortilla. Fold bottom third up and over filling just until covered. Fold left and right sides of tortilla over, and roll up.
Brush both sides of chimichanga with melted butter, and place seam side down into air fryer basket.
Bake at 400°F 8-9 minutes or until golden brown. Serve with optional toppings, if desired.