Chinese Pepper Steak

Step 1
Slice steak into 1/2-inch thick slices across the grain.

Step 2
Whisk together soy sauce, sugar, cornstarch, and ginger in a bowl until the sugar has dissolved and the mixture is smooth. Place steak slices into the marinade, and stir until well-coated.

Step 3
Heat 1 tablespoon vegetable oil in a wok or large skillet over medium-high heat, and cook steak strips in batches in hot oil so as not to crowd the pan. Cook and stir until well-browned, about 3 minutes, and remove steak from the wok to a bowl. Repeat with remaining steak, adding more oil as needed, and set the cooked meat aside.

Step 4
Return cooked steak strips to the hot wok, and stir in onion. Toss steak and onion together until onion begins to soften, about 2 minutes, then stir in green pepper.

Step 5
Cook and stir the mixture until peppers have turned bright green and started to become tender, about 2 minutes more, then add tomatoes.

Step 6
Stir everything together to mix and blend flavors, and serve.