ORIENTAL TUNA CASSEROLE

Preheat oven to 425°. Rinse frozen peas under running cold water to separate; drain. Mix pea pods, soup, milk, tuna, onions, celery and water chestnuts in large saucepan. Heat to boiling, stirring constantly. Turn heat to low; keep mixture warm, stirring occasionally. Mix biscuit mix, water and soy sauce to form a soft dough. Beat for about 30 seconds. Turn dough onto a well floured surface and smooth into a ball. Knead 5 times. Roll into a 5-inch square; cut into 1-inch squares. Pour hot tuna mixture into an ungreased 1 1/2-quart casserole or baking dish. Top with squares of dough; spread melted margarine over dough; sprinkle with sesame seeds. Bake at 425° about 15 minutes or until browned.