Prepare the Peppers: Preheat your air fryer to 375°F (190°C). Slice the tops off the bell peppers and remove the seeds and membranes. Lightly brush the outside of the peppers with olive oil and place them aside.
Make the Filling: In a large mixing bowl, combine the cooked quinoa, shredded chicken, corn, black beans, half of the shredded cheese, ranch seasoning mix, and diced tomatoes. Mix everything together until well combined. Season with salt and pepper to taste.
Stuff the Peppers: Carefully spoon the filling into each bell pepper, packing it down gently as you fill them. Leave a little space at the top for the cheese, which will melt.
Air Fry the Peppers: Place the stuffed peppers upright in the air fryer basket. Cook them in batches if necessary, ensuring they are not overcrowded. Air fry for 12–15 minutes, until the peppers are tender and slightly charred.
Add Cheese and Finish: In the last 3 minutes of cooking, sprinkle the remaining cheese on top of each stuffed pepper and continue air frying until the cheese is melted and bubbly.
Garnish and Serve: Once done, carefully remove the peppers from the air fryer. Garnish with fresh parsley or cilantro if desired and serve hot.
Notes
Feel free to customize the meat and add more vegetables if desired.