Beef and Shrimp with Bok Choy

I got this recipe from http://www.eatingwell.com/. It calls for some unusual ingredients, but I found all of them at Albertsons. The flavor was very unique and really delicious. I will definitely make this again!
Ingredients:
1/4 cup Shao Hsing rice wine
1 1/2 tablespoons oyster flavored sauce
2 teaspoons corn starch
4 teaspoons canola oil
3/4 pound sirloin steak, trimmed of fat, cut in half lengthwise and thinly sliced
1/2 teaspoon chili powder
10 raw shrimp, peeled and chopped
1 pound bok choy (preferably baby bok choy) trimmed and sliced into one inch pieces

Directions:
1. Whisk rice wine, oyster sauce and cornstarch into a small bowl until cornstarch is dissolved.
2. Heat 2 teaspoons oil in a large pan over medium heat. Add beef and chili powder to taste; cook, stirring until the beef begins to brown, 1-2 minutes. Add shrimp and continue to cook, stirring, until the shrimp is opaque and pink, 1-2 minutes.
3. In a separate pan, heat the remaining 2 teaspoons oil over medium heat. Add bok choy and cook, stirring, untilit begins to wilt, 2-4 minutes. Stir in the cornstarch mixture. Return the beef-shrimp mixture to the pan and cook, stirring, until heated through and the sauce has thickened slightly, about 1 minute.

*Serves 4
*204 calories, 8 grams fat, 6 grams carbs, 22 grams protein, 1 gram fiber