Delicious and easy to make well in advance of dinner. When I made this salad I substituted crumbled blue cheese in place of the parmesan in the mayo and also crumbled some on top. It was fabulous, if you like blue cheese. I used crumbled bacon instead of ham, also substituted baby spinach for half the lettuce for a little more nutritional value. I'd also go with some more peas, it was a short layer in my bowl.