To make Red Wine Dressing: Whisk together olive oil, vinegar, parsley, honey, garlic, salt and pepper.
To assemble Roasted Sweet Potato Salad: Whisk together olive oil, vinegar, oregano, mint, garlic, salt and pepper; toss with potatoes until well-coated. Arrange in single layer on parchment paper-lined baking sheet. Roast about 30 minutes, or until golden brown and tender.
Arrange sweet potatoes on serving platter. Top with lettuce, tomato and olives; drizzle with dressing.
Notes
For traditional Greek flavor, sprinkle with crumbled feta cheese before serving. Alternatively, cut sweet potatoes into wedges.