-
Clean and remove stems from kale, then tear the leaves into 2 inch pieces. Place into a steaming device of your choice (stovetop or microwave), and steam until leaves are just wilted and bright green, about 5 minutes.
-
Place kale leaves into food processor bowl, along with beans, 1 cup panko, sunflower seeds, basil, garlic and lemon juice. Pulse a few times until well blended, stopping to scrape down sides of bowl as needed. Add up to an additional ¼ cup of panko if mixture seems too soft. Season the mixture with salt and pepper to taste.
-
Shape the mixture into 4 to 6 patties.
-
Lightly oil the bottom of a medium skillet and place over medium heat. Working in batches if needed, place patties into skillet and cook until browned on bottoms, about 4 minutes. Flip and cook until browned on opposite sides, about 4 minutes more.
-
Stuff into buns and top with toppings of choice. Serve.