Ham and cheese croquette by Quick and Easy Recipes:

Finely slice the onion and sweat it in a little oil. Once translucent, add the diced ham and leave to brown for 5 minutes. Add the butter, melt it. Sprinkle with flour, stir well and gradually pour in the milk. Mix to avoid lumps in the bechamel. Add the grated cheese and season. Leave to cool and harden in a cool place for 3 hours. Form croquettes, roll them in flour then beaten eggs and breadcrumbs. Fry in hot oil.
Good tasting …….