Wash and dry the salad greens thoroughly.
In a large bowl, combine the mixed salad greens.
Add the mandarin orange segments to the greens.
Sprinkle the sliced almonds and feta cheese over the salad.
Add the thinly sliced red onion for extra flavor.
In a small bowl, whisk together the olive oil and balsamic vinegar.
Season the dressing with salt and pepper to taste.
Drizzle the dressing over the salad just before serving.
Toss the salad gently to combine all ingredients.
Garnish with sesame seeds and fresh mint leaves.