Ingredients

  • 1 cup walnuts
  • 3 lb. Romano beans or green beans, trimmed
  • 3 Tbsp. red wine vinegar
  • 2 Tbsp. Dijon mustard
  • 1 garlic clove, finely grated
  • 2 Tbsp. extra-virgin olive oil, plus more for drizzling
  • 1/2 lemon
  • 3/4 cup very coarsely chopped parsley
  • Freshly ground black pepper

Method

  • Preheat oven to 350°F. Toast walnuts on a rimmed baking sheet, tossing once, until golden brown, 8-10 minutes. Let cool, then coarsely chop.
  • Cook Romano beans in a large pot of boiling salted water until bright green and tender, 8-10 minutes. Using a slotted spoon, transfer to a bowl of ice water and let cool. Drain and pat dry.
  • Meanwhile, mix vinegar, mustard, garlic, and 2 Tbsp. oil in a large bowl to combine. Let sit 10 minutes for flavors to come together.
  • Add walnuts and Romano beans to dressing. Finely zest lemon over beans and add parsley. Season with salt and lots of pepper and toss to coat. Transfer to a platter and drizzle with more oil.