Pasta with Cauliflower, Lemon and Pistachios

We drew on the flavors of bagna cauda—the sauce-like dip from Italy's Piedmont region that is a harvest ritual—pairing pasta and skillet-seared cauliflower with the bold flavors of garlic and anchovies. The anchovies melt away, leaving behind a salty-savory tang, while butter and some of the pasta cooking water help create a quick pan sauce. Toasted pistachios add crunch; lemon juice and zest brighten the dish. Campanelle is a frilly, trumpet-shaped pasta that catches both cauliflower and sauce; other short pasta shapes, such as farfalle and cavatappi, also worked well.