Trim fat from beef steak; cut beef with grain into 2-inch strips. Cut strips across grain into 1/8-inch slices. Toss beef, cornstarch, 1/4 teaspoon salt, and the vegetable oil. Cover and refrigerate 20 minutes.
Cut radishes diagonally into 1/4-inch slices.
Heat broth to boiling in 3-quart saucepan. Add radishes, 1 teaspoon salt and the gingerroot. Heat to boiling; cover and boil 10 minutes. Add beef; stir to separate pieces. Heat to boiling; boil uncovered 20 seconds or until beef is done. Remove gingerroot; stir in chopped green onions.
4 to 6 servings
*A 10-ounce diakon can be substituted for white radishes. Cut daikon lengthwise into fourths. Cut each fourth crosswise into ¼-inch slices.
From "Betty Crocker's New Chinese Cookbook." Text Copyright 2005 General Mills, Inc. Used with permission of the publisher, Wiley Publishing, Inc. All Rights Reserved.