Greek Salad with Flank Steak (Greek Steak Salad) — The Mom 100

Ingredients

• 1 pound flank steak
• ⅓ cup plus 1 tablespoon extra-virgin olive oil
• Kosher salt and freshly ground black pepper ((to taste))
• ¼ cup red wine vinegar
• ½ cup diced red onion
• 1 teaspoon dried oregano
• 1 teaspoon Dijon mustard
• ½ teaspoon finely minced garlic
• ¼ teaspoon red pepper flakes ((optional))
• 8 cups sliced romaine lettuce hearts
• ½ seedless cucumber, (halved lengthwise and sliced)
• 1 cup halved or quartered cherry tomatoes
• ½ cup sliced pitted kalamata olives ((or other Greek olives))
• ⅓ pound (about 3/4 cup) crumbled feta cheese
• Drained jarred pepperoncini ((optional))