Spinach & Artichoke Dip with Locatelli Parmigiano Reggiano 10 oz package frozen chopped spinach, thawed & squeezed dry14 oz can artichoke hearts, drained & chopped4 oz cream cheese, softened½ cup sour cream¼ cup mayonnaise¾ cup Locatelli Parmigiano Reggiano, freshly grated (plus a little extra