In a saucepan, bring the vegetable broth to a boil. Add the rinsed quinoa, cover, and let simmer for about 15 minutes or until the water is fully absorbed. Remove from heat and fluff with a fork.
Slice the tops off the peppers and remove the seeds and membranes. Place the peppers upright in a baking dish.
In a large mixing bowl, combine the cooked quinoa, black beans, corn, diced tomatoes, red onion, garlic, cumin, chili powder, paprika, and season with salt and pepper. Mix until well combined.
Spoon the quinoa mixture evenly into each bell pepper, packing it down slightly.
Top each stuffed pepper with a generous sprinkle of shredded cheese.
Cover the baking dish with aluminum foil and bake for 25 minutes. Remove the foil and bake for an additional 10 minutes, or until the cheese is bubbly and golden.
Remove from the oven and let cool for a few minutes before serving.
Garnish with fresh cilantro and serve with lime wedges on the side for a burst of flavor.
Notes
Feel free to customize the filling with your favorite vegetables.