Grilled Flat Iron Steak with Creamy Peruvian Green Sauce

June 2, 2026

The best Father’s Day celebrations start in a backyard designed for good food, great company, and time spent outdoors. When the grill is hot, the patio is full, and everyone is enjoying the day together, a memorable meal naturally follows. That’s why Grilled Flat Iron Steak with Creamy Peruvian Green Sauce is a fitting choice for the occasion. It delivers bold flavor, satisfying portions, and the kind of meal that keeps family and friends gathered around the table long after the last bite.

Flat iron steak is known for its rich, beefy flavor and tender texture, making it a great choice when you want something impressive without spending all day tending the grill. Paired with a creamy Peruvian green sauce packed with fresh herbs, peppers, and bright citrus notes, every bite offers a balance of savory depth and vibrant flavor. The sauce complements the steak beautifully while adding a fresh twist that feels right at home in an outdoor setting.

Father’s Day meals are often less about formality and more about enjoying good food with the people who matter most. A recipe like this fits that spirit perfectly. It’s hearty enough to satisfy a hungry crowd yet approachable enough for a relaxed Sunday afternoon. Serve it alongside grilled vegetables, roasted potatoes, or a crisp salad, then settle in for the rest of the day.

Of course, every great Father’s Day plan should include one final detail. Once the plates are cleared and the compliments have been shared, make sure the hammock is ready. After a steak dinner like this, Dad has certainly earned a well-deserved food-coma siesta beneath the summer sky.

Ready to upgrade your outdoor spaces? Nicolock offers everything from pavers and retaining walls to fire features and outdoor living solutions designed for lasting enjoyment. If you’re planning a new grilling area or refreshing your backyard entertaining space, explore Nicolock’s outdoor dining collection and discover even more outdoor cooking inspiration in Nicolock’s recipe collection.

Serves 6-8

Grilled Flat Iron Steak with Creamy Peruvian Green Sauce Ingredients

For Steak

• 1 lb flat iron steak
• 1 tbsp vegetable oil
• 1 tsp kosher salt
• ¼ tsp black pepper

For Sauce

• ½ cup fresh cilantro
• ½ cup fresh parsley
• 3 medium cloves of garlic
• 2 small green chilies (or 1 jalapeno)
• ½ lime, juiced
• ¾ tsp coarse salt
• ¼ cup olive oil
• ⅓ cup mayonnaise

Grilled Flat Iron Steak with Creamy Peruvian Green Sauce Directions

Grill the Flank Steak

1. Preheat grill or grill pan over high heat for 5-10 minutes.
2. Brush both sides of the steak with oil. Sprinkle generously with salt and pepper. Grill steak over direct heat until well seared on the bottom.
3. Don't attempt to flip it until it releases easily when you gently lift a corner with tongs.
4. When the bottom is nicely seared with beautiful grill marks, flip and finish cooking on the other side until the internal temperature reaches 125ºF for medium rare.

Make Creamy Peruvian Green Sauce

1. Add all ingredients to a small food processor or blender. Pulse until mixture is fairly smooth but not pureed.

Rest & Serve

• Transfer the steak to a cutting board, tent with foil, and let it rest for 5 minutes to redistribute the juices before slicing.
• Serve steak sliced with green sauce drizzled over.

Taken from foodess.com