Texas Style Steak Chili

Heat oil in a large pot over medium high heat. Add steak and cook, stirring frequently, until browned. Transfer steak to a large bowl. Discard juices from pot. Add onions to pot and cook, stirring frequently, 8 to 10 minutes until tender. Return the round steak to the pot along with the tomatoes with juices and chili powder. Bring to a boil. Reduce heat to medium low, cover and simmer, stirring occasionally, about 75 minutes until steak is tender. Stir in steak sauce, salt and pepper and simmer an additional 15 minutes. Serve hot.