This Grilled Mustard Chicken is tender, flavorful, and very simple to make. It's served with a 5-minute, dairy-free walnut cream sauce and grilled green beans for a totally incredible, healthy dinner.

grilled mustard chicken on a plate.

You guys, this mustard chicken. Where do I even begin?

Why you'll love this mustard chicken

  • The chicken is tender and flavorful.
  • It's extremely simple to make.
  • Drizzled with a delicious 5-minute, dairy-free mustard cream sauce.
  • Made on your BBQ. Hello, tasty grill marks!
  • Served with a side of mustard green beans for a complete meal!
Grilled Mustard Chicken with Creamy Walnut Sauce

How to make grilled mustard chicken

Luckily for us, it's super easy to make this meal. Turn on the BBQ, take out your blender, and dinner will practically make itself.

  1. Start by putting the walnut mustard sauce ingredients into your blender. Now turn it on. That's it! You can move onto the chicken now that the sauce is done.
  2. Season the chicken and pop it onto your BBQ. Phew, what a lot of work. Joking!
  3. Now toss the green beans in some oil and salt. Once the chicken has been grilling for 15 minutes, add the green beans to the grill.

That's it! All you have to do now is put the chicken and green beans on a plate and pour some of that amazing sauce you made in your blender over the chicken. So easy and so delicious!


The walnut cream sauce

Calling this a cream sauce is a little misleading as you won't find any dairy in this recipe. But it's a very creamy sauce, so let's keep the name.

The ‘cream' comes from blending walnuts. They're high-fat nuts which means they will turn creamy when you blend them into a sauce. If you're familiar with cashew-based sauces, then you'll recognize what we're doing here. If this is your first nut sauce, be prepared to be amazed!


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More Delicious Grilling Recipes:

grilled mustard chicken on a plate.

Grilled Mustard Chicken Recipe

This grilled mustard chicken is tender, flavorful and very simple to make. It's served with a 5-minute, dairy-free walnut cream sauce and grilled green beans.

If you love this recipe as much as we do, let us know with a 5-star rating!

4.98 stars (43 ratings)
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Walnut Cream Sauce

  • ½ cup toasted walnuts, see notes
  • ½ cup water
  • 1 ½ tablespoons dijon mustard
  • 1 small garlic clove
  • ¼ teaspoon balsamic vinegar
  • Salt and pepper, to taste

Mustard Chicken

  • 4 chicken legs
  • 2 tablespoons dijon mustard
  • ½ teaspoon sea salt
  • 2 tablespoons parsley, finely minced
  • 1 tablespoon thyme, finely minced
  • Chopped walnuts, black pepper, and parsley, to serve

Green Beans

  • 4 handfuls green beans
  • 1 teaspoon olive oil
  • ¼ teaspoon sea salt
  • 1 teaspoon dijon mustard


  • Preheat the grill to medium low.
  • Place the walnut cream sauce ingredients in a blender and blend on high until everything is smooth and creamy. Season to taste with salt and pepper.
    ½ cup toasted walnuts, ½ cup water, 1 ½ tablespoons dijon mustard, 1 small garlic clove, ¼ teaspoon balsamic vinegar
  • Rub the chicken legs evenly with the mustard. Sprinkle the chicken with sea salt, parsley, and thyme. Place the chicken legs skin side up on the bbq and let them grill for 15 minutes. Flip the chicken legs over and let them cook for another 5-8 minutes, or until the chicken reaches an internal temperature of 165 degrees.
    4 chicken legs, 2 tablespoons dijon mustard, ½ teaspoon sea salt, 2 tablespoons parsley, 1 tablespoon thyme
  • Toss the green beans with olive oil and sea salt. Pop them on the grill once the chicken has been on for 15 minutes. Let them grill for 5-8 minutes, or until they are tender but still crisp and they have many have grill marks on them. Toss them with dijon mustard and serve immediately.
    4 handfuls green beans, 1 teaspoon olive oil, ¼ teaspoon sea salt, 1 teaspoon dijon mustard
  • To serve, drizzle the chicken with the walnut mustard sauce and sprinkle some chopped walnuts over the top and the green beans on the side.
    Chopped walnuts, black pepper, and parsley


To toast the walnuts place them on a baking tray and toast them in the oven for 7-8 minutes at 350 degrees.
Nutritional information is calculated with skinless chicken legs.
Serving: 1 serving = ¼ of the recipe, Calories: 304kcal, Carbohydrates: 11g, Protein: 30g, Fat: 17g, Saturated Fat: 2g, Polyunsaturated Fat: 9g, Monounsaturated Fat: 4g, Trans Fat: 1g, Cholesterol: 117mg, Sodium: 732mg, Potassium: 627mg, Fiber: 4g, Sugar: 4g, Vitamin A: 996IU, Vitamin C: 18mg, Calcium: 85mg, Iron: 3mg
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