Heat olive oil in a nonstick pan on medium heat. Add apples and scallions and cook until the apples are soft around 5-7 minutes. Take off heat and let cool.
Mix the next 6 ingredients in a large bowl. Add apple mixture. Form into patties and salt and pepper both sides.
Grease grill well with non-stick cooking spray then heat to medium high for at least 10 minutes. Add patties and cook for 7 minutes on each side until fully cooked through.
Put patties in toasted buns and top with chutney and purple onion. Enjoy!