Leftovers: Refrigerate in an airtight container for up to three days.
More Flavor: Add breadcrumbs, egg, Dijon mustard, smoked paprika, basil, parsley or thyme to the beef mixture.
Make it on the Grill: Grill the beef patties over medium-high heat for about 6 minutes, flipping halfway. Slice your cabbage into wedges for easy grilling.
No Cabbage: Use bell peppers, zucchini, eggplant or mushrooms instead.
Make it Egg-Free: Use vegan mayonnaise, guacamole or salsa instead.