Toss spinach, strawberries, bananas, mandarin oranges, cranberries, and walnuts together in a large bowl.
Combine vinegar, oil, honey, and garlic powder in a jar with a tight-fitting lid. Seal jar and shake vigorously until the ingredients emulsify into a dressing; pour over the spinach mixture. Sprinkle sesame seeds over salad to serve.
All done! Now take a photo, rate it, and share your accomplishments!