Pour the vinaigrette ingredients into a small jar and shake until smooth.
Alternately, whisk together in a small bowl.
Preheat oven to 375 degrees F.
Whisk the frothy egg whites with the honey.
Add walnuts, salt and pepper and toss well.
Bake until they are golden and crisped, about fifteen minutes. Let cool.
Toss the spinach and red onion with the dressing.
Top with the crispy walnuts.
» Metric Converter