I cut longitudinal strips of leeks and I made them curly and brown in some oil in my safepan. I replaced the leeks with frozen peas; added some water, waited for them to boil a couple of minutes, added salt, then fregola, that I cooked like a risotto, adding hot water little by little. When ready, I topped it with the leeks that I had stored in a plate.
Pity that fregola is not easily available in England. The one I used came from Little Italy in York, a very nice place where to buy food and eat at the table.