Lightly mist a 9 x 13-inch (or similar size) dish with cooking spray and add fruit directly to it.
Top fruit with syrup, cornstarch, and lemon juice. Toss to combine.
To a large mixing bowl, add the flour, oats, coconut, nuts, stevia, and salt. Stir to fully combine.
Add vanilla extract and coconut oil and mix with a large spoon or your hands until evenly distributed but crumbly texture remains. *
Spread the crisp topping evenly over the fruit. Bake uncovered on the center oven rack for 40-45 minutes or until the fruit is bubbling and the top is golden brown.
Let cool ~10 minutes before serving by cutting 3x3.**
Notes
*Stop recipe here and put both berries and crumble mixture in fridge separately if preparing in advance.**Though best if eaten fresh, this recipe does store well in the refrigerator for up to 5 days.Serving suggestion – vanilla bean gelato or coconut ice cream (not included in nutrient calculations above)