Cut the tops off the bell peppers and remove the seeds and membranes. Place them in a baking dish, cut side up.
In a saucepan, bring the vegetable broth to a boil. Stir in the quinoa, reduce heat, cover, and simmer for about 15 minutes or until the liquid is absorbed and the quinoa is fluffy. Remove from heat and let cool slightly.
In a large mixing bowl, combine the cooked quinoa, chickpeas, cherry tomatoes, cucumber, feta cheese, olives, olive oil, oregano, garlic powder, salt, and pepper. Mix well until ingredients are evenly distributed.
Stuff each bell pepper generously with the quinoa mixture.
Cover the baking dish with aluminum foil and bake in the preheated oven for 25 minutes.
Remove the foil and bake for an additional 10-15 minutes, until the peppers are tender and slightly charred on top.
Remove from the oven and let cool for a few minutes before serving.
Garnish with fresh parsley or basil before serving.
Notes
Feel free to customize the filling with your favorite vegetables.