Meat & Zucchini Casserole

1½ pounds chopped meat (beef, chicken or turkey)
1 large or 2 medium zucchinis, thinly sliced
2 or 3 large tomatoes, thinly sliced
1 large Vidalia onion, thinly sliced
6 – 8 very thin slices of butter
Italian-style breadcrumbs
Grated Parmesan cheese
Non-stick cooking spray

Brown chopped meat in skillet.  Spray your casserole dish lightly with non-stick [...]