Grilled Peaches with Vanilla Bean Mascarpone, Honey and Granola

firm but ripe peaches (, halved and pitted)

olive oil (, plus more for brushing grill)

. mascarpone

Seeds of 1/2 vanilla bean

vanilla extract

honey

honey oat granola ((or substitute 1/3 cup chopped nuts such as walnuts or pecans))

fresh raspberries

Fresh mint leaves