Preheat oven to 350 degrees.
Trim fat off of lamb chops. Arrange chops in a large, greased casserole dish. Peel onions and slice them. Place a layer of rings on top of the chops. Sprinkle 1/3 of the seasonings over the onions. Slice carrots and layer them on top. Season again, then layer potatoes over carrots (if small leave whole, larger potatoes are sliced).
Add cold water or stock to fill dish halfway. Bake covered for one hour then remove cover and continue to bake for an additional half hour.
Serve on dish with meat in the center and sprinkle with parsley.