Preheat your oven to 375°F (190°C).
In a medium saucepan, bring the vegetable broth to a boil. Add the bulgur, cover, and reduce heat to low. Simmer for 12-15 minutes, or until the liquid is absorbed and the bulgur is tender.
While the bulgur is cooking, heat the olive oil in a skillet over medium heat. Sauté the chopped onion for about 5 minutes until soft and translucent. Add the garlic and cook for another minute.
Stir in the cooked bulgur, chickpeas, cumin, coriander, cinnamon, salt, and pepper. Cook for 2-3 minutes to allow the flavors to meld.
Remove from heat. Mix in the feta cheese, parsley, mint, and dill.
Fill each bell pepper with the bulgur and chickpea mixture, packing it down gently.
Place the stuffed peppers in a baking dish, and bake in the preheated oven for 20-25 minutes, or until the peppers are tender and the filling is heated through.
Serve the stuffed peppers warm, garnished with additional herbs if desired.