In A Large Saucepan Over Medium Heat, Combine The Beef And Onion And Saute Until Meat Is Browned And Onion Is Tender. Add The Stewed Tomatoes With Juice, Tomato Sauce, Beans And Water. Season With The Chili Powder, Garlic Powder, Salt And Ground Black Pepper To Taste. Bring To A Boil, Reduce Heat To Low, Cover And Let Simmer For 15 Minutes.