@MangoKangaroo@21Cabbage There are lots of options, but personally I like serving them with rice, fried onions and kale! You can either pan fry them, or spread them on a sheet tray in the oven with the onions. I simultaneously make seasoned rice cooked in vegetable stock and a teaspoon or two of the same spices I cooked the chickpeas and onions in. (I like ras el hanout, but you can use whatever seasoning you like.)
@LoamImprovement@jarfil The egg is being used to form a sauce - you limit the heat it gets so that it doesn't curdle. Classic carbonara is done with fatty pork like guanciale, so you get a sauce that consists of rendered fat and cheese with egg holding it together and making it creamy.