In a bowl, combine egg, green onions, garlic, coriander, bread crumbs, peanuts, fish sauce, lime juice, ginger, brown sugar, curry paste, soy sauce and sesame oil.
Add pork and mix well.
Shape pork mixture into four patties. (They can be prepared ahead of time; place patties in an airtight container, separated by wax paper. Patties will keep for one day in the fridge and up to one month in the freezer. Thaw in fridge.)
Set gas barbecue to medium-high heat.
Oil barbecue grill and then place patties on top.
Grill for 6 to 8 minutes per side, or until meat is no longer pinkish.
In the meantime, place buns on the grill and toast for 2 minutes, or until golden.