This brown butter, lemon, and walnut pasta is a simple yet flavorful dish that combines the nutty richness of brown butter with the bright tang of lemon and the crunch of toasted walnuts. The brown butter adds a depth of flavor to the pasta, while the lemon adds a refreshing zing. The walnuts provide a satisfying crunch and a hint of bitterness. This dish is perfect for a quick and easy weeknight dinner or a special occasion.