How to Make It
Heat oven to 400ºF. Spread the walnuts on a rimmed baking sheet and toast, tossing occasionally, until fragrant, 6 to 8 minutes. Let cool, then roughly chop.
In a small bowl, combine the artichoke hearts, spinach, Parmesan, mayonnaise, lemon juice, walnuts, ¼ teaspoon salt, and 1/8 teaspoon pepper. Serve with the crackers and vegetables.