Slice the tops off the bell peppers and remove the seeds and membranes carefully. Set them aside.
In a large mixing bowl, combine the shredded chicken and BBQ sauce, mixing until the chicken is well coated.
Add the cooked quinoa (or rice), corn, black beans, smoked paprika, garlic powder, salt, and pepper to the bowl. Mix until all ingredients are evenly incorporated.
Stuff each bell pepper generously with the BBQ chicken mixture, pressing down gently to fill them completely.
Place the stuffed peppers upright in a baking dish. If desired, pour a little extra BBQ sauce over the tops of the peppers.
Cover the baking dish with aluminum foil and bake for 25 minutes.
Remove the foil and sprinkle shredded cheddar cheese on top of each pepper. Return to the oven, uncovered, and bake for another 10-15 minutes, or until the cheese is melted and bubbly.
Once done, allow the peppers to cool slightly before serving. Garnish with fresh cilantro for added flavor.
Notes
Feel free to customize the filling with your favorite ingredients.