This marinaded Grilled Flat Iron Steak is so simple to prepare and just melts in your mouth!

The Tastiest Grilled flat iron steak {gluten free, paleo option}

adapted from serious eats
Course Main Course
Prep Time 1 hour
Cook Time 12 minutes
Total Time 1 hour 12 minutes
Servings 4
Calories 399 kcal
Author Noshtastic


  • 1 lb Flat Iron Steak
  • Marinade
  • 1/2 cup gluten free soy sauce - coconut aminos for paleo 120 mls
  • 1/2 cup lime juice 120mls, from 8 limes
  • 1/4 cup olive oil 60mls
  • 3 tbsp honey - omit for whole30
  • 2 teaspoons ground cumin
  • 1/2 tsp red pepper flakes
  • 2 teaspoons freshly ground black pepper
  • 3 cloves medium garlic finely minced


  1. Add the marinade ingredients together and whisk to combine.
  2. Place the steak in a non reactive container where it can be covered by the marinade at least half way up the side of the steak, if it's not fully covered you will need to remember to turn over the steak
  3. Marinate for one hour. If you marinate it longer it may be too salty

  4. Bring steak to room temperature before grilling, then grill over a medium high heat for about 4 - 6 minutes per side.

  5. Let the steak rest for five minutes, then slice and serve.

Nutrition Facts
The Tastiest Grilled flat iron steak {gluten free, paleo option}
Amount Per Serving
Calories 399 Calories from Fat 225
% Daily Value*
Fat 25g38%
Saturated Fat 6g38%
Cholesterol 74mg25%
Sodium 1711mg74%
Potassium 474mg14%
Carbohydrates 18g6%
Sugar 14g16%
Protein 25g50%
Vitamin A 100IU2%
Vitamin C 9.7mg12%
Calcium 30mg3%
Iron 4.2mg23%
* Percent Daily Values are based on a 2000 calorie diet.