Step 1

Preheat air fryer to 320°F for 8 minutes.

Step 2

For filling, in a saucepan cook mushrooms, onion, bell pepper, and garlic in ¼ cup water over medium about 10 minutes or until onion starts to turn translucent, stirring occasionally. Add water, 1 to 2 tablespoons at a time, as needed to prevent sticking. Stir in beans, tomato paste, and taco seasoning. Cook 5 minutes, stirring occasionally. Remove from heat. Stir in riced cauliflower, lemon juice, and salt. Taste and adjust seasoning.

Step 3

Warm tortillas according to package directions. Wrap in a kitchen towel to keep warm. To assemble taquitos, lay a warm tortilla on a clean surface. Spoon tablespoons filling horizontally across middle of tortilla. Starting from edge closest to you, roll up tortilla, tucking it under filling and rolling tightly to make a thin roll. Place assembled taquito on a tray lined with an additional kitchen towel. Keep covered. Repeat with remaining tortillas and filling.

Step 4

Transfer half of the taquitos, or as many as can fit, into the air fryer. Air-fry 5 to 7 minutes or until tortillas are crisp and slightly browned around the edges. Serve warm with guacamole.