Ingredients

  • 2 lb green beans (preferably haricots verts), trimmed
  • 4 lb butternut squash, halved lengthwise, seeded, and diagonally cut crosswise into 1 1/2-inch-thick triangular pieces
  • 3 tablespoons olive oil
  • 1/4 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1 stick (1/2 cup) plus 1 tablespoon unsalted butter, stick cut into tablespoon pieces and other tablespoon melted
  • 1 1/2 tablespoons Sherry vinegar
  • 1 1/2 tablespoons soy sauce

Method

  • Preheat oven to 425F.
  • Cook beans in 2 batches in a 4-quart saucepan of boiling salted water until just tender, 3 to 4 minutes, transferring with a slotted spoon to a bowl of ice and cold water to stop cooking.
  • When cool, drain beans and pat dry.
  • Toss squash with oil, salt, and pepper in a large bowl, then roast in a large shallow baking pan (1 inch deep) in middle of oven, turning occasionally, until golden brown and tender, about 40 minutes.
  • While squash is roasting, melt 1 stick butter with vinegar and soy sauce over moderately low heat, whisking until emulsified, about 4 minutes.
  • Season with salt and pepper.
  • Reduce oven temperature to 350F.
  • Push roasted squash to 1 side of roasting pan and add beans to other side.
  • Drizzle beans with tablespoon melted butter and heat in middle of oven, uncovered, stirring occasionally, about 20 minutes.
  • Transfer roasted vegetables to a dish.
  • Just before serving, drizzle with Sherry soy butter and gently toss.