This is a recipe based on one by Giada De Laurentiis. It's superb! It freezes well with no discoloration so it's easy to make ahead or to freeze leftovers (not that there ever is in my house). If you don't want to make the crostini, spread the pea pesto on Melba toast or other very crisp crackers. Don't skip the tomatoes as they really finish the dish. I usually use sourdough bread for this.This also makes a great sauce for chicken or fish.