Shells with Pistachio Pesto, Stracciatella & Mortadella

Shells with pistachio pesto, with mortadella (left), and without

I had half a bag of pistachios left over from recipe testing, so I thought I’d turn them into pesto. This brought to mind one of my favorite pizza topping combinations: pistachio pesto, creamy stracciatella cheese, and mortadella. Voilà, this savory, springy pasta dish was born. Stracciatella, by the way, is the creamy interior of burrata cheese. You ca…