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A white fluted edged platter piled with green beans topped with a mustard butter sauce.
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3.79 from 156 votes

Green Beans with Mustard Butter Sauce

Green beans with mustard butter sauce is a quick and easy side dish with rich, tangy flavor and only 5 ingredients!
Prep Time5 minutes
Cook Time5 minutes
Total Time10 minutes
Yield: 4 servings

Ingredients

  • 1 pound fresh green beans, trimmed
  • 1 tablespoon coarse grain mustard
  • ½ tablespoon Dijon mustard
  • ¼ teaspoon kosher salt
  • ⅛ teaspoon black pepper
  • juice ½ lemon
  • 2 tablespoons unsalted butter, melted

Instructions

  • Cook green beans in boiling, salted water until crisp-tender, about 5 minutes. (Add a few minutes if you want yours more soften.)
  • In the meantime, combine the remaining ingredients in a medium bowl and whisk to combine.
  • Drain the green beans, then add to the bowl and toss with the mustard butter sauce to coat. Serve immediately.

Notes

Butter: You can substitute olive oil for the butter if you’re vegan or if you want the sauce to be more of a vinaigrette.
Mustard: I like the texture and flavor of the whole grain mustard, but if you don’t have any, you can use all Dijon mustard here.

Video

Nutrition

Calories: 125kcal | Carbohydrates: 17g | Protein: 3g | Fat: 6g | Saturated Fat: 4g | Polyunsaturated Fat: 2g | Cholesterol: 15mg | Sodium: 269mg | Fiber: 4g | Sugar: 11g
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