In a large dutch oven pot, or large pot, heat the olive oil over medium-high heat. Once hot, add the diced sweet potatoes, diced sweet onion, and chopped green and red bell peppers. Sauté for 8-10 minutes, while stirring occasionally.
2 tablespoons extra-virgin olive oil, 2 large sweet potatoes, 1 sweet onion, 1 green bell pepper, 1 red bell pepper
Add in the vegetable broth, black beans, red kidney beans, petite diced tomatoes, fresh lime juice, tomato paste, chili powder, cumin, kosher salt, black pepper, and cayenne pepper (if using). Stir everything together and let it heat to boiling.
2 cups vegetable broth, 1 can (15 oz) black beans, 1 can (15 oz) red kidney beans, 1 can (14.5 oz) petite diced tomatoes, 1 lime, 1 tablespoon tomato paste, 1½ tablespoons chili powder, 2 teaspoons cumin, 1 teaspoon kosher salt, ½ teaspoon ground black pepper, ¼ teaspoon red cayenne pepper