Cantonese Casserole

Yield:	4 Servings
Categories:	Chinese, Pork

10	oz	Frozen french style green beans
1	tb	Canola oil
1	tb	Flour
3/4	c	Skim milk
2	tb	Lite Soy sauce
1	c	Lite dairy sour cream *
2	c	Diced cooked ham
1		Flat can water chestnuts
1/2	c	Bread crumbs
1		Paprika
1		Vegetable spray