Trim fat from meat; cut meat into strips, 2x1x¼ inch.
Heat oil in large skillet. Add meat; cook, turning frequently, until brown, about 5 minutes. Stir in water, onion, garlic salt and ginger. Heat to boiling; reduce heat.
Cover and simmer 12 to 15 minutes for round steak, 5 to 8 minutes for sirloin. Add green pepper strips during last 5 minutes of sim-mering. While meat simmers, cook instant rice as directed on package for 4 or 6 servings.
Blend cornstarch, sugar and soy sauce; stir into meat mixture. Cook, stirring constantly, until mixture thickens and boils. Boil and stir 1 minute. Cut each tomato into eighths and place on meat mixture. Cover; cook over low heat just until tomatoes are heated through, about 3 minutes. Serve with rice.