There used to be a packaged mix for these, as well as a number of other Asian dishes, but they seem to have faded from the scene before I had a chance to banish them because of the sodium content. The oriental vegetable mix I use contains bean sprouts, mushrooms, water chestnuts, bamboo shoots, and red peppers, but you can use whatever vegetable mix you like.
1 1/2 pounds (680 g) extra-lean ground beef (93% lean)
1 can (15 ounces, or 420 g) oriental vegetable mix
1/2 teaspoon (1 g) oriental seasoning
1/4 teaspoon (0.5 g) ground ginger
1/4 cup (60 ml) Reduced-Sodium Soy Sauce
Combine all ingredients. Shape into 6 patties. Grill or fry to desired doneness.