Salt and pepper to taste Preheat oven to 180ºC . Saute onions in a frying pan over medium heat until translucent. In a bowl combine ham, hard-boiled eggs, rice, parsley, salt and pepper. Stir in the egg yolks to bind the mixture. Stuff this into the squid with a small spoon. Seal each one with a toothpick. Layer in a baking dish and cover with tomatoes. Bake for 20 minutes. Serve hot or warm with a green salad and a not too strong red wine. From "The International Squid Cookbook" by Isaac Cronin, Aris Books, Berkeley, Ca. 1981 ISBN 0-915572-61-3