Position knife blade in a miniature food processor bowl; add first 9 ingredients. Process until smooth, and set aside.
Combine spinach and lettuce in a bowl; toss well. Place 1 cup salad greens on each of 2 salad plates. Combine tomato and next 3 ingredients in a small bowl. Spoon tomato mixture evenly over salad greens. Sprinkle each serving with 1 tablespoon cheese. Drizzle cilantro dressing mixture evenly over salads.