Roasted Green Beans with Onions and Walnuts

Here is a flavorful alternative to boiling your beans – roasting them with a balsamic vinegar honey coating, topped with toasted walnuts.

Roasted Green Beans with Onions and Walnuts Recipe

  • Yield: Serves 4.


  • 1 lb green beans, stem ends snapped off
  • 1/2 medium yellow or red onion, cut into 1/2 inch thick wedges
  • 1 Tbsp olive oil
  • Salt and pepper
  • 1 Tbsp balsamic vinegar
  • 1 teaspoon honey
  • 1 teaspoon minced fresh thyme
  • 2 medium thin-sliced garlic cloves
  • 1/3 cup toasted chopped walnuts


1 Place rack in middle position, preheat oven to 450°F. Line a rimmed baking sheet with aluminum foil or Silpat. Spread the beans and onions on the baking sheet. Drizzle the beans with olive oil and use your hands to coat the beans evenly. Sprinkle the beans with 1/2 teaspoon of salt, toss to coat, and distribute in an even layer. Roast for 10 minutes.

2 While roasting the beans, combine the balsamic vinegar, honey, thyme, and garlic slices in a small bowl.

3 After the beans and onions have roasted for 10 minutes, remove from oven. Drizzle the vinegar honey mixture over the beans and onions; use tongs to coat evenly. Put back in the oven and continue to roast until onions and beans are dark golden brown in spots and beans have started to shrivel, about 12-15 minutes longer.

Season to taste with salt and pepper. Transfer to serving dish, sprinkle with toasted chopped walnuts, and serve.

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Adapted from recipe in Cook's Illustrated.

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Showing 4 of 7 Comments

  • Kathy

    I’ve been wanting to try out roasted green beans since I got that issue and this recipe has sent me over the edge. It looks delicious!

  • Sara

    I bought greenbeans at the market last night, i will be sure to try this out. Excellent idea, thanks!

  • Beth - The Zen Foodist

    Oh, I’m definitely trying this one! I’m really into making green beans b/c my husband loves them so much. This sounds like a different way to make them that will be delicious and easy because it’s ingredients that I always have on-hand. Thanks!

    Do you think there would be a problem using frozen green beans?

  • Elise

    Hi Kathy – It’s definitely a different way to do beans. They are chewier, and loaded with flavor. Toasted walnuts make a big difference.

    Hi Sara – Let us know how they turn out!

    Hi Beth – I don’t see problem with using frozen green beans, as long as you have defrosted them. Green beans from a can, however, no dice.

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