Prepare the Ingredients: Peel and dice the sweet potatoes, dice the onion and bell pepper, and mince the garlic.
Cook the Aromatics: Heat olive oil in a large pot over medium heat. Add the onion and bell pepper, and sauté until softened, about 5 minutes. Add the garlic and cook for another minute.
Add the Spices: Stir in the chili powder, cumin, smoked paprika, and oregano. Cook for 1-2 minutes to toast the spices.
Simmer the Chili: Add the sweet potatoes, crushed tomatoes, black beans, and vegetable broth. Stir well and bring to a boil. Reduce heat to low and simmer for 25-30 minutes, or until the sweet potatoes are tender.
Garnish and Serve: Taste and adjust seasoning with salt and pepper. Serve hot with your favorite toppings.