Herbed Mustard Sirloin Steak
Print Recipe
2 from 1 vote

Herbed Mustard Sirloin Steak

This herbed mustard sirloin is an easy dinner that pairs well with any salad. It's 21 Day Fix and Weight Watchers friendly! 
Prep Time5 mins
Cook Time20 mins
Total Time25 mins
Course: Main Course
Cuisine: American
Keyword: 21 Day Fix, dinner, sirloin
Servings: 4
Calories: 300kcal


  • 2 tablespoons extra virgin olive oil
  • 2 tablespoons Dijon mustard
  • 2 teaspoons Italian seasoning
  • ½ teaspoon garlic powder
  • lbs sirloin steak
  • Sea salt and black pepper to taste


  • Heat olive oil in a large skillet over medium-high heat.
  • In a small bowl, combine the mustard with the Italian seasoning and garlic powder. Generously coat the steak with the herbed mustard on all sides. Season with salt and black pepper, to taste.
  • Swirl hot skillet to evenly distribute olive oil. Add steak and sear on all sides, including edges, approximately 1-2 minutes per side.
  • Reduce heat to medium and cook on one side for approximately 5-7 minutes. Turn steak and cook for another 3-5 minutes, or until steak reaches desired level of doneness.
  • Tip: Use an instant read thermometer to determine when the internal temperature is 5°F below the desired result.* (The temperature will continue to rise while the meat rests).
  • Remove from heat and let rest for 5 minutes. To serve, slice the steak against the grain and serve with your choice of side dishes. Enjoy!


Calories: 300kcal | Carbohydrates: 1g | Protein: 37g | Fat: 15g | Saturated Fat: 3g | Cholesterol: 103mg | Sodium: 182mg | Potassium: 604mg | Vitamin A: 15IU | Calcium: 68mg | Iron: 3.3mg