In a small bowl, whisk together the balsamic vinegar, olive oil, honey, salt, and pepper to create the dressing. Set aside.
In a large salad bowl, combine the fresh spinach leaves and sliced strawberries.
Add the toasted sliced almonds, crumbled feta cheese, and thinly sliced red onion to the salad bowl.
Drizzle the dressing over the salad ingredients.
Gently toss everything together until all ingredients are well coated in the dressing.
Taste and adjust the seasoning with additional salt and pepper if desired.
Serve immediately as a refreshing side or main salad.
Notes
For an eye-catching display, layer the salad ingredients in a clear serving bowl to showcase the vibrant colors, and garnish with a few whole strawberries on top.