Begin by preheating your oven to 375°F (190°C) so it’s ready when your peppers need to bake.
Carefully slice the tops off the bell peppers and remove the seeds and membranes. Set the prepared peppers aside on a plate.
In a medium-sized saucepan, bring the vegetable broth to a brisk boil. Once boiling, add the rinsed quinoa, cover with a lid, and reduce the heat to low. Allow it to simmer for about 15 minutes or until all the broth has been absorbed. Afterward, fluff the quinoa with a fork and set it aside to cool slightly.
In a large mixing bowl, combine your cooked quinoa with black beans, corn, diced tomatoes, finely chopped red onion, cumin, smoked paprika, chili powder, and season with salt and black pepper. Mix the ingredients thoroughly until well blended.
Using a spoon, carefully fill each bell pepper with the quinoa mixture, packing it in tightly to ensure each pepper is full.
Arrange the stuffed peppers upright in a baking dish. Generously sprinkle the shredded cheese over the top of each filled pepper.
Cover the baking dish tightly with aluminum foil to keep the moisture in, and place it in the preheated oven. Bake for 25 minutes. After this time, carefully remove the foil and continue baking for an additional 10-15 minutes, or until the peppers are tender and the cheese is melted, bubbly, and golden brown in color.
After baking, remove the dish from the oven and let the stuffed peppers cool for a few minutes before serving.
Before serving, garnish each pepper with a sprinkle of fresh chopped cilantro and serve alongside lime wedges for a zesty finish.
Notes
Feel free to customize the spices and toppings to your liking.