Heat oil in a large pot over medium heat. Add chiles, onion and garlic. Cook, stirring, until the vegetables are softened, 5 to 7 minutes. Add quinoa, oregano, cumin, salt, coriander and pepper; cook, stirring, until aromatic, about 1 minute. Stir in broth and beans. Bring to a boil. Reduce heat to a simmer. Partially cover and cook, stirring occasionally, for 20 minutes. Add zucchini; cover and continue cooking until the zucchini is soft and the chili has thickened, 10 to 15 minutes more. Stir in cilantro and lime juice. Serve with lime wedges, if desired.