Place a 4 quart pot on the stove over medium high heat and add 1 tablespoon olive oil.
Once the oil is hot add in the chorizo, break up with a wooden spoon and cook until browned. Add in the onions and bell peppers and cook just until they start to soften.
Add in diced tomatoes, beans, sweet potato, water and taco seasoning. Cook over medium high heat for about 20 minutes or until the sweet potato is soft and the chili has cooked down slightly. If the chili gets too thick while cooking simply add more water.
To serve top with desired amount of chopped cilantro.
Recipe by Farmgirl Gourmet at https://www.farmgirlgourmet.com/2015/11/chorizo-sweet-potato-black-bean-chili.html