Jose Garces lists this as one of his favorite recipes. This is what he has to say:
When my mom makes this dish in the springtime, she uses fresh garbanzo and fava beans as well as the English peas. If you spy either or both of these at your local farm[er’s] market or Latin grocery, snap them up and add them to the mix: shucking, blanching, and peeling them is a bit of a hassle, but they are fine things (cosas finas), for sure. English peas are often available in supermarkets year-rough; note that when peas are in season, the pea pods tend to produce more per pod and the peas themselves are often larger, so you may not need to buy the full two pounds called for to end up with cups of shelled peas. Also, the size of the peas themselves will be larger when they’re in season. Canned hominy is stocked in [some] supermarkets.