Pasta with arugula, beans, and nuts

Description

Cook pasta in a large pot of boiling salted water according to package instructions until al dente. Reserve 1/2 cup of the cooking liquid, then drain the pasta and set aside. Heat a saucepan over medium heat. Add garlic and 1 tablespoon of butter. Cook, stirring, until fragrant, about 2 minutes. Add arugula, beans, cooked pasta, and the remaining 3 tablespoons of butter. Season with salt and pepper. Toss well, adding enough reserved cooking liquid as needed to moisten. Serve with walnuts.

Instructions