Casserole of vegetables

The Spanish are not very good at cooking vegetables. All too often you get a horrible stir-fry of frozen mixed vegetables including Brussels sprouts, carrots, onions, swede and God knows what else - limp, flavourless, invariably cold and swimming in water. Curious because it doesn’t half bugger up a perfectly cooked Dover sole! Spain does produce splendid vegetables but they are used to prepare dishes or soups, not as an adjunct to a piece of meat or a piece of fish, and are served as a mea