Oriental Steak Rolls

1 | pound flank steak |
Salt and Pepper | |
16 | asparagus spears, trimmed |
16 | thin green onions, trimmed |
1 | green pepper, cut in strips |
16 | mushrooms (any variety), sliced |
1 | carrot, julienned or thinly sliced |
1/3 | cup seasoned rice vinegar |
1/3 | cup soy sauce |
3 | teaspoons sugar |
1 | tablespoon sesame oil |
1/2 | tablespoon cornstarch |