Combine cream cheese, crabmeat, soft bread crumbs, and sesame oil.
In a skillet, heat one-inch oil to 370 degrees.
Put 1 teaspoon of filling into a won ton skin. Fold over one corner to the center. Moisten other corners with cool water and fold into center, one by one. Press edges to seal.
Deep fry about 3 minutes or until lightly browned and puffed. Turn after 1½ minutes.
Drain on absorbent paper and serve hot with Chinese mustard.