01 - Preheat the oven to 425°F.
02 - Place carrots, parsnips, sweet potato, and beet on a large baking sheet. Drizzle with 2 tablespoons olive oil, sprinkle with sea salt and black pepper, and toss to coat evenly.
03 - Spread vegetables in a single layer and roast for 30 to 35 minutes, turning halfway, until tender and caramelized. Let cool slightly.
04 - In a small bowl, whisk together extra virgin olive oil, balsamic vinegar, Dijon mustard, honey, salt, and pepper until emulsified.
05 - In a large salad bowl, combine salad greens and roasted vegetables. Drizzle with vinaigrette and toss gently to combine.
06 - Top with crumbled feta cheese and toasted walnuts or pecans. Serve immediately.