In a Dutch oven over medium heat, warm the oil.
Sauté the beef, sausage, onion and garlic until meat is no longer pink and onion is tender, about 10 minutes. Add remaining ingredients and stir well.
Cover with a tight-fitting lid, and bake 1 hour, stirring occasionally. Uncover and bake 30 minutes longer. Remove bay leaves and discard.
Serve with sour cream, sliced green onions, or grated cheddar cheese.