Warm Lemon Broccoli Pasta Salad

dry pasta (bow ties, penne, etc)

broccoli florets

unsalted butter

extra virgin olive oil

(fresh minced garlic)

zest of one lemon

kosher salt and fresh ground black pepper (to taste)

freshly squeezed lemon juice

toasted (chopped walnuts)

freshly shaved Parmesan cheese plus more for garnish