Churrasco & Chimichurri Sandwich - Martin's Famous Potato Rolls and Bread

Ingredients

• 1 Cup Chopped Fresh Parsley Leaves
• 1/2 Cup Chopped Fresh Cilantro
• 1 Tablespoon Chopped Fresh Oregano Leaves
• 1 Green Onion, thinly sliced
• 5 Medium Cloves Garlic, minced
• 1 Teaspoon Lemon Zest
• 3/4 Cup Extra Virgin Olive Oil
• 1/4 Cup Red Wine Vinegar
• 1/2 Teaspoon Kosher Salt, plus more to taste
• 1 Pound Skirt Steak or Flank Steak
• Freshly Ground Black Pepper, to taste
• 2 Martin's Hoagie Rolls