Creamy Mustard Chicken
This quick skillet chicken is perfect for all the mustard lovers out there! Ready in only 15 minutes with a simple creamy mustard sauce! Serve over cauliflower or traditional rice for a tasty entree.
I’ve received so much love for my Easy Mustard Sauce and 3-Ingredient Honey Mustard that I know ya’ll will appreciate another mustard focused recipe! So this one is for the mustard lovers!
The sauce isn’t overpoweringly mustard flavored but it’s definitely there. And it’s beautifully creamy thanks to the power of arrowroot flour. That stuff thickens like a dream!
In this recipe we’re using the following ingredients:
Chicken breasts (but of course you can sub chicken thighs).
Olive or avocado oil for sautéing.
Fresh baby spinach.
We start by chopping chicken breasts (or thighs if you prefer) into 1-inch chunks. I like to do this before cooking because it drastically shortens our cooking time and makes it easier to achieve that great browning on each piece.
Then toss your chicken into a large skillet (11″ or 12″ nonstick skillet works perfectly) with oil. Add your seasonings. Sauté until chicken is golden in color.
While chicken is sautéing, stir together sauce ingredients.
Pour that sauce into the skillet with your browned chicken. Stir in fresh spinach. Simmer until it wilts.
To thicken the sauce, shake the arrowroot and cold water together in a jar to create a slurry. Pour it into your skillet and stir. Voila! It thickens almost immediately.
And we’re done! (Full instructions are in the recipe card below of course.)
Can you use soy sauce instead of coconut aminos?
Yes if it’s low sodium. However, I always recommend coconut aminos because it’s just so much better for you. It really does taste like soy sauce and doesn’t have a coconut flavor! You can find more information about coconut aminos here if it’s new to you and you’re curious.
As a general rule, you can always use liquid aminos or a low sodium soy sauce in place of coconut aminos if that’s your preference. Both have a stronger flavor so you may see a change in the finished taste but it shouldn’t be significant.
Can you omit the spinach?
Of course! Feel free to omit the spinach completely if you like OR swap it for another quick cooking veggie. Kale would work well! Stirring in steamed broccoli or cauliflower rice would be yummy too!
What is arrowroot flour?
Arrowroot flour is a starch extracted from the arrowroot plant and it is a fantastic substitute for cornstarch or regular white flour for thickening. It’s a lot less processed, completely flavorless, and blends into everything. It cannot be used in exactly the same way as other thickeners so be sure to follow recipe instructions so you’re using it correctly. In this recipe (and in many of my recipes) I like to shake it with equal parts cool water to create a slurry. Then I add that into whatever I’m thickening at the end of my cooking time. (Heating it too long can make it lose its ability to thicken.)
How to make this Whole30 compliant?
This recipe is completely allowable on a round of Whole30! You’ll want to be sure you’re using a compliant dijon mustard (I personally love Annie’s Dijon Mustard) and serve this over something that is also compliant. I recommend cauliflower rice or roasted veggies. I have plenty more serving suggestions listed below. Just pick something that’s fit for your Whole30.
How to serve this?
This sauce is yummy so be sure to serve this chicken over something that can sop it all up! I have lots of delicious options for you but my top choice is steamed cauliflower rice or traditional rice.
Serving this chicken over roasted veggies like my Spicy Roasted Broccoli, Easy Roasted Broccoli, Roasted Brussels Sprouts, or Roasted Green Beans with Almonds would be perfect too!
If you’re looking for some carbs you could also add this to the top of Easy Seasoned Roasted Potatoes, Easy Diced Air Fryer Potatoes, or Skillet Breakfast Potatoes.
More skillet recipes like this:
Balsamic Peach Skillet Chicken
More mustard lovin’ recipes:
Sausage & Veggie Bowls with Easy Mustard Sauce
Sweet Mustard Sheet Pan Chicken
Creamy Mustard Chicken
Chicken + Spinach
- 1 tbsp olive or avocado oil
- 1 1/2 lbs chicken breasts, Cut into 1-inch pieces. Can use chicken thighs if preferred.
- 1/2 tsp salt
- 1/2 tsp chili powder
- 1/2 tsp ground mustard
- 1/2 tsp garlic powder
- 1/2 tsp dried parsley
- 5 oz fresh baby spinach
- 1/2 cup coconut aminos
- 1/2 cup water
- 1 1/2 tbsp dijon mustard
- 1 tsp balsamic vinegar
- 1/4 tsp salt
- 1 tbsp arrowroot flour
- 1 tbsp coldwater
To Finish (Optional)
- Sesame seeds
- Fresh chopped parsley
- Heat oil in a large skillet (I use my 12") over medium-high heat. Once oil is hot, add chicken pieces. Season with salt, chili powder, ground mustard, garlic powder, and dried parsley. Sauté, flipping occasionally, for 4 to 5 minutes or until chicken has some browning. (If your chicken is still pretty beige you likely don't have your heat on medium-high!)
- While chicken is sautéing, stir together coconut aminos, 1/2 cup water, dijon mustard, balsamic vinegar (note that it says tsp and NOT tbsp), and salt in a bowl.
- Once chicken pieces have browned, pour in your sauce mixture. Add fresh spinach to the skillet. Stir. Simmer for 2 to 3 minutes or until spinach has wilted. No longer than that because we don't want to reduce our sauce.
- To thicken sauce, combine arrowroot flour and 1 tbsp cold water in a small jar. Shake. Turn off heat. Pour the mixture into the skillet and stir so it’s thoroughly mixed in. You’ll notice the sauce begins to thicken immediately.
- Serve over traditional or cauliflower rice. (See above recipe card for many more serving suggestions!) Top with sesame seeds and/or chopped parsley (optional).
14 Comments on “Creamy Mustard Chicken”
So delicious and I subbed porkchops for the chicken and it was so good!! Easy.. came together under 30 minutes.. picky husband approved
This was so good!! The sauce was so sweet without any sweetener. I used chk thighs and served it over W30 mashed potatoes. No other changes.
The chicken came out super tender and it smelled so good. I loved how easily it all came together. I followed the recipe to a T, but mine came out super salty. I used liquid aminos instead of coconut aminos. Could that be the problem?
We made this on Monday for dinner, today is Saturday and I’m still thinking about this meal lol! It was such an easy one to throw together and the taste was drool worthy! My husband has already requested that I make the sauce again to try with pork chops too. Thank you for a recipe that pleased the whole family!
My whole family loved this! The sauce is amazing and I love that it included spinach, which my kids didn’t mind at all. We had it with white rice and it was a great pairing.
This is so dang flavorful! So many of Christina’s recipes are tasty, healthy, and use fairly common ingredients. This one is no exception. I didn’t feel the mustard flavor was overpowering—instead it seemed subtle—but SO GOOD! It came together quickly with a minimal amount of prep so it would be a super easy weeknight meal.
Simple and delicious
I’m glad you enjoyed it! Thank you!
Made this for lunch today. I used peas instead of spinach and served it over cauliflower rice. It was delicious. Will definitely cook again!! I love your recipes because you really use spices!!! Thanks.
Made this for a second time last night and loved it even more after a couple of modifications. I used about 2 tbsp dijon because I want all the mustard taste. I subbed tamari instead of coconut aminos but used about half of the amount after reading the tip that it has a stronger taste. I also used cornstarch instead of arrowroot. Turned out SO good! Served with roasted broccoli and mashed potatoes! Super yummy and versatile, will be on regular rotation in this house!
Made this tonight. So easy and so delicious.
I pinned this recipe months ago and finally made it for the first time. Absolutely great flavor and very easy to pull together rather quickly. Thanks for another tasty addition to the recipe box, Christina!
Easy to week night recipe everyone loved. My daughter said it is her new favorite
I was hesitant try, really only have mustard on a sandwich, honey mustard for dipping, but this is so good! Another quick easy meal, flavorful and good for you. I have switched it up a couple times with Broccoli instead of spinach and it is very good!