Mongolian Beef Sandwiches

Ingredients

 * 2   Pounds flank steak
 * sliced against the grain
 * Cut 12 thick slices for -satays belo
 * 1/2   Cup canola oil
 * 1   Tablespoon sesame oil
 * 1/2   Cup thin soy sauce
 * 1/2   Cup shaoshing wine or red -wine
 * 2   Tablespoons garlic; minced
 * 1/2   Cup scallions; chopped
 * 1/2   Tablespoon coarse ground-black pepper
 * Canola oil
 * 2   red onions; sliced
 * 2   serrano chiles; minced
 * 1/2   Head white cabbage; chopped
 * 1   red bell peppers; julienned
 * 1   green bell peppers; -julienned
 * 2   carrots; thinly sliced
 * 4   pita bread, toasted; grilled or heated in the oven

Directions

 * 1) Marinate steak in a bowl with oils, soy sauce, wine, garlic, scallions and black pepper. Let stand at least 4 hours refrigerated.
 * 2) Drain beef in another bowl and reserve with 12 larger slices for satays.
 * 3) In a hot wok, coat with oil and stir fry onions and serrano chiles. Add beef and cook until rare. Add vegetables.
 * 4) Check for seasoning. Serve with pita bread and black bean aioli.