Pork Chop and Zucchini Casserole

Yield:	6 Servings
Categories:	Meat, Casseroles, Pork

1	tb	Butter or oil; (up to 2)
6		Centre loin pork chops; 1 inch thick
2	md	Onions; thinly sliced
2		Sweet potatoes; peeled, thinly sliced
6	tb	Flour
2	c	Milk; heated
1/4	ts	Dry mustard
1/2	ts	Dried thyme
1/2	ts	Salt
		Several grinds of pepper
3		Zucchini (3 or 4); sliced 1/4" thick
1 1/2	c	Grated Mozzarella cheese