Heat olive oil in a large pan. Add onion and cook 4 minutes until softened.
Add turkey, cook 10 minutes until cooked through. Stir in black beans for 3 minutes to warm.
Toss mixed greens, red pepper, cherry tomatoes, cabbage, radishes, sweet potato, and green onion in a large salad bowl.
Top each portion with turkey and bean mixture. Serve with cilantro dressing.