Greek Caesar Salad

Bahan-bahan (6 porsi)

• ¾ cup extra-virgin olive oil
• ¼ cup freshly squeezed lemon juice
• 1 tablespoon mayonnaise
• 2 medium garlic cloves, (minced)
• 1 teaspoon dried oregano
• ¼ teaspoon salt
• ⅛ teaspoon freshly ground black pepper
• 1 head romaine lettuce, (chopped)
• ¾ cup halved kalamata olives
• 1 small red onion, (thinly sliced)
• ½ cup crumbled feta cheese
• croutons ((optional))