Heat oil in a large pot over medium-high heat. Stir in zucchini, yellow squash, red bell pepper, green bell pepper, jalapeno, garlic, and onion. Cook 5 minutes, just until tender.
Mix tomatoes with liquid, tomato paste, black beans, corn, and chili beans in spicy sauce into the pot. Season with chili powder, oregano, black pepper, and cayenne pepper. Bring to a boil. Reduce heat to low and simmer 1 hour, stirring occasionally.
