Cook egg noodles according to chart.
In 1 1/2-quart microproof casserole, combine ham.
onion, tarragon, and butter.
Cook, covered, on HI (max. power) 3 minutes.
Add chicken soup, egg noodles, green beans, and water.
Cook, covered, on HI (max. power) 5 minutes, or until hot, stirring once during cooking time.
Top with bread crumbs.
Let stand, covered.
2 to 3 minutes before serving.