Cut the tops off the bell peppers and remove the seeds and membranes. Place them upside down on a baking dish.
In a medium pot, combine the quinoa and vegetable broth. Bring to a boil, then reduce heat to low, cover, and simmer for about 15 minutes or until the quinoa is fluffy and liquid is absorbed.
In a large skillet over medium heat, add a drizzle of olive oil. Sauté the diced onion for 3-4 minutes until translucent. Add minced garlic, cumin, smoked paprika, chili powder, salt, and pepper, cooking for an additional minute.
Stir in the black beans and corn into the skillet, mixing everything well.
Once the quinoa has finished cooking, add it to the skillet mixture and combine thoroughly. Remove from heat.
Spoon the quinoa filling into each bell pepper generously. Top each filled pepper with shredded cheese.
Pour a bit of water into the bottom of the baking dish (just enough to cover the bottom) to create steam during cooking.
Cover the dish with aluminum foil and bake for 25 minutes.
Remove the foil and bake for an additional 10 minutes, or until the cheese is melted and bubbly.
Let the stuffed peppers cool for a few minutes, then garnish with fresh cilantro or parsley before serving.
Notes
Serve the stuffed peppers on a vibrant platter, drizzling with a bit of extra virgin olive oil and sprinkling chopped cilantro over the top for a fresh finish.