Black Bean Sweet Potato Chili with Quinoa

Name: Black Bean Sweet Potato Chili with Quinoa
Ingredients: 1 tablespoon olive oil; 1 onion, chopped; 5 cloves garlic, minced; 2-3 teaspoons chili powder; 1 1/2 teaspoons ground coriander; one 14.5-ounce can chopped tomatoes; 1/2 pound black beans, soaked overnight; 1 chipotle chile (from canned chipotle chiles in adobo), minced; 1 teaspoon dried Mexican oregano (or regular); 1 1/2 teaspoons kosher salt, or more to taste; 1 medium sweet potato, cut into 1/2-inch cubes (1 1/2 cups); 1/4 cup quinoa, rinsed and drained; 3 cups water; Sour cream or greek yogurt for garnish; Chopped fresh cilantro for garnish