In a mixing bowl, combine the beef patties ingredients except for the avocado oil. Form into 8 long patties with both of your hands. Brush a little oil on the patties.
Preheat grill to medium-high heat and cook the patties for 3-4 minutes on each side. Set aside to rest for 5 minutes, covering loosely with foil.
To serve, place the patties on lettuce leaves and top with kimchi and tomatoes. Garnish with sesame seeds. Wrap it up and enjoy!