Add the olive oil to a large pot over medium heat.
1 tbsp olive oil
Once hot, add the ground beef and cook until browned, breaking up the meat to avoid large chunks.
1 lb lean ground beef
Stir in the onion, garlic, and bell pepper.
1 yellow onion, 3 clove garlic, 1 red bell pepper
Continue to cook for another 5 minutes, stirring occasionally, until the vegetables are tender.
Stir in the cumin, chili powder, salt, smoked paprika, oregano, and cayenne pepper (if using).
2 tsp chili powder, 2 tsp cumin, 1/2 tsp oregano, 1 tsp smoked paprika, 1 tsp salt, 1/4 tsp cayenne pepper
Add the sweet potatoes, diced tomatoes, broth, and both types of beans.
28 oz tomato, 3 cups beef broth, 1 sweet potato, 14 oz black beans, 14 oz adzuki beans
Bring to a simmer over medium heat. Continue to cook for 20 to 30 minutes, until the sweet potatoes are tender.
Depending on your tastes and dietary preferences, serve the chili with your favorite toppings such as sliced avocado, shredded cheddar cheese, sliced jalapeño, sour cream or plain Greek yogurt, and chopped cilantro.
avocado, cheddar cheese, jalapeño, Greek yogurt