This amazing Chili-Roasted Sweet Potato + Black Bean Quinoa Salad is the PERFECT lunch or dinner. Saute for 5 minutes or until onions become translucent. Heat the olive oil in a medium-sized pot over medium-high heat. Preparation. Packed with fiber, protein and flavor you're going to LOVE it! Add the onion, garlic, carrots and a dash of salt. This flavorful recipe is a favorite in the soup/chili collection for Instant Pot, stove, or crockpot. Sweet potato black bean chili is a hearty, scrumptious vegetarian chili with sweet potatoes, black beans, corn, quinoa, and chili seasonings.