Add oil to the bottom of a large pot and heat over medium high heat. Add garlic, onion, red bell pepper, celery and sweet potatoes. Saute until the onions begin to turn translucent and the other veggies soften; about 6-7 minutes.
Add the chili powder, cumin, oregano, salt and pepper to the pot. Stir to combine and let cook for another minute while stirring.
Next add the frozen corn, black beans, pinto beans, crushed tomatoes and vegetable broth. Stir everything together and let it come to a boil. Reduce the heat and simmer for 30 minutes or until it reaches your desired consistency.
Garnish with your favorite toppings like, shredded cheese, chopped cilantro or chives, diced avocado, and sour cream or plain Greek yogurt. Enjoy!