Add ground beef, onion, carrots and celery to a large pot over medium-high heat. Cook, breaking up meat, until cooked through and vegetables are tender. Add garlic and cook for an additional minute.
Season with cumin, chili powder, oregano, salt and pepper.
Stir in beef broth, diced tomatoes, pinto beans, frozen vegetables and potatoes. Bring to a boil then cover and reduce heat to low. Let simmer for 30 minutes or until potatoes are tender.