Make caramelized onions (can be made in advance and frozen)
Prepare 1000 Island style spread sauce
Toast burger buns dry
Grill and season 2 oz vegan patties
Before flipping patties, squirt with mustard
Top patties with vegan American cheese
Add a squirt of water and cover to steam and melt cheese
Build burger with bun, patty, caramelized onions, and sauce
Wrap burger and serve
