Brown Ground Beef. In a stock pot saute chopped onion in olive oil until transparent. Add browned ground beef and beef broth, reserving 3/4 cup. Heat on medium for 15 min. Add Tomato puree and tomato sauce, heat additional 10 minutes on medium. Add in all beans un-drained and stir. Allow to cook until it starts to boil. While cooking mix 3/4 cup reserved broth with 2 tablespoons tapica flour in a separate small bowl. Mix until flour desolves. Add back to stock pot and stir continuously to achieve desired thickness. Add in pasta and turn down to low and allow to simmer until pasta is tender. Add salt and water to achieve desired flavor and thickness as it thickens as it cooks