2) Make a crispy topping by combining flour, granulated sugar, brown sugar, ground cinnamon, nutmeg, rolled oats, cold butter and cut all together with a fork or by hand.
3) When pears are starting to get tender, sprinkle crispy topping on the pears for the last 10 minutes of grilling time.
4) Meanwhile, brush fresh flour tortillas with melted butter and cook on the griddle, 2 minutes each side. Remove from the griddle, brush a little butter on 1 side and sprinkle with cinnamon sugar. When cooled, cut tortillas in quarters to be served later.
5) Remove pears from griddle, placing each pear in a single serving bowl with a dollop of vanilla ice cream surrounded by cinnamon tortilla chips. Serve immediately.