sprigs fresh thyme, parsnips, cut into 1/2 inch pieces, turnips, cut into 1/2 inch pieces, rutabaga, cut into 1/2inch pieces, carrots, cut into 1/2 inch pieces, stalks celery, sliced, garlic, finely chopped, onion, chopped, barley (not quick cooking), bunch Swiss chard, stems discarded, leaves chopped, salt & pepper, Shaved Parmesan, for serving