Andrea Slonecker's Crab Macaroni Gratin with Barilla Noodles

Andrea Slonecker makes Crab Macaroni Gratin with a glorious amount of crabmeat baked with shell-shaped pasta in a three-cheese cream sauce —tangy white Cheddar, nutty Gruyère, and sharp Parmigiano-Reggiano—is no-joke delicious, and trés riche.