Prep four days' worth of high-protein vegan lunches using just four easy ingredients from your local specialty grocery store, including a veggie-heavy salad mix as a base. Because this salad mix is hearty, you can dress these bowls up to 24 hours before serving to allow the flavors in this healthy chopped salad to marry. If you can't find a hearty mix, go with broccoli slaw or shredded Brussels sprouts.