Slice the tops off the bell peppers and remove the seeds and membranes. Set aside.
In a medium saucepan, bring the vegetable broth to a boil. Add the rinsed quinoa, reduce to a simmer, cover, and cook for about 15 minutes or until the liquid is absorbed and the quinoa is fluffy.
In a large mixing bowl, combine the cooked quinoa, black beans, corn, diced tomatoes, cumin, smoked paprika, garlic powder, onion powder, salt, and pepper. Mix well to incorporate all ingredients.
Stuff each bell pepper with the quinoa mixture, pressing down gently to pack it in. Place the stuffed peppers upright in a baking dish.
Cover the dish with aluminum foil and bake in the preheated oven for 25 minutes.
Remove the foil, sprinkle cheese on top of each stuffed pepper, and return to the oven. Bake for an additional 10 minutes or until the cheese is melted and bubbly.
Once done, remove from the oven and let cool for about 5 minutes.
Serve the stuffed peppers garnished with fresh cilantro and lime wedges on the side for squeezing over.
Notes
Feel free to customize the stuffing with your favorite vegetables or spices.