Preheat the oven to 350ºF.
Prepare the filling: In a 9x13-inch baking dish, add the peaches and apricots.
Prepare the crumble topping: In a large bowl, stir together the sesame seeds, chopped pecans, oat flour, rolled oats, tahini, maple syrup, vanilla extract, cinnamon, nutmeg, and season with a pinch of salt.
Spread the crumble mixture on top of the fruit. Cover with foil and place in the oven to bake for 25 minutes.
Remove the foil and bake another 20 to 30 minutes until the fruit is bubbling and the crumble is golden brown.
Remove from the oven, allow to cool for 10 minutes, then serve with coconut or oat milk ice cream.