This soup is so spring. I used 3 sliced and washed leeks in place of the onion. I also added 1 medium yukon gold potato, diced and boiled. I did not add the ham hock. I intended to add crispy prosciutto, which would have pulled the ham element more together. I garnished with smoked olive oil and croutons. https://www.epicurious.com/recipes/food/views/green-pea-and-ham-soup-395073