Keto mustard chicken, keto chicken breast recipe, keto chicken breast, keto mustard and rosemary chicken
3.8 from 5 votes

Keto Mustard Chicken with Rosemary

Using both dijon and seeded mustard blends perfectly with rosemary to create succulent chicken breast with a delicious sauce. 

Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 2
Calories 336 kcal


  • 2 chicken breasts evenly sized
  • 1/2 tablespoon garlic paste
  • 3 tablespoons dijon mustard
  • 1 tablespoon seeded mustard
  • 2 tablespoons lemon juice
  • 2 tablespoons olive oil
  • 1.5 tablespoons dried rosemary
  • 1 tablespoon butter


  1. Preheat the oven to 200C / 392F and grease a small baking tray.

  2. Pat dry the chicken breast and put in the baking tray. Combine all ingredients except the butter and whisk together in a small bowl.

  3. Pour the sauce over the chicken and turn to coat evenly. 

  4. Place in the oven for 25 - 30 minutes, checking with a meat thermometer after 25 minutes. Remove once they reach 70 degrees C and let rest for 3 - 4 minutes. 

  5. While resting, put the 1 tablespoon of butter into the pan juices and whisk to combine. 

  6. Serve sliced chicken breast topped with mustard sauce, and accompanied by cauliflower mash or steamed broccoli tossed in butter. 

Nutrition Facts
Keto Mustard Chicken with Rosemary
Amount Per Serving
Calories 336 Calories from Fat 216
% Daily Value*
Fat 24g37%
Saturated Fat 6g38%
Cholesterol 87mg29%
Sodium 523mg23%
Potassium 449mg13%
Carbohydrates 4g1%
Fiber 1g4%
Protein 25g50%
Vitamin A 255IU5%
Vitamin C 9.2mg11%
Calcium 45mg5%
Iron 1.3mg7%
* Percent Daily Values are based on a 2000 calorie diet and all calculations are estimates only.