A bright, citrusy dressing, crunchy radishes, and spiced pumpkin seeds make this salad stand out.
In a large bowl, whisk together orange juice, vinegar, mustard, and oil until combined and thickened; season with salt and pepper.
Add lettuce and radishes to bowl; toss gently to coat with dressing. Divide salad among four plates; sprinkle with pumpkin seeds.