Combine water, curry powder, salt, and turmeric; heat to boiling. Add cauliflowerets, reduce heat and simmer 5 minutes. Remove from heat and let stand 5 minutes. Drain and cool to room temperature.
In large mixing bowl, combine salad greens, pecans, tomato, and chives. Toss with 1/4 cup vinaigrette. Divide salad mixture among serving plates. Toss cauliflower with remaining 2 tbsp. vinaigrette, and arrange on top of each salad. Serve.