Slice red onions thinly. Sautee for a few minutes in canola oil over medium heat, removing from element once they are fragrant and lighten in colour. Do not over cook and remove before they turn brown! Set aside to cool.
Mix Canola oil, balsamic vinegar and honey. Mixture should be a 2:1:1 ratio. season with salt and pepper or herbs if desired.
Toss mixed greens with salad dressing mixture. Top mixed greens with chopped celery, walnuts, dried cranberries, feta and cooled sauteed red onions. Serve with pan-fried fish or chicken for a complete meal!