Roasted Pear Crumble

Ingredients
Method
Place racks in upper and lower thirds of oven and preheat to 375°F. Place pears, cut side up, on a small baking sheet, drizzle with 2 teaspoons oil, and roast on upper rack until soft, 20–30 minutes. Let cool slightly.
Meanwhile, toss almonds, pumpkin seeds, brown sugar, oats, salt, and remaining 2 tablespoons oil on a small baking sheet. Toast on lower rack, stirring occasionally, until golden, 10–12 minutes. Remove from oven and mix in sesame seeds. Let cool.
Whisk mascarpone and sugar in a small bowl. Spoon mascarpone onto plates and top with pears and nut-oat crumble.