Jerk Turkey Burgers with Mango Slaw

1 pound ground turkey

1 tablespoon jerk seasoning, plus more for sprinkling

1 small green apple, peeled and grated

1/2 cup finely chopped scallions

1/4 cup panko (Japanese breadcrumbs)

Kosher salt and freshly ground pepper

1/4 cup mayonnaise, plus more for brushing

1/4 cup mango chutney, roughly chopped

3 cups shredded green cabbage

1 carrot, shredded

Canola oil, for the grill

4 hamburger buns or challah rolls, split