Preheat oven to 350°F. Grease a 9 1/2 inch deep dish pie plate. Set aside.
Filling:
In a large bowl, combine all filling ingredients. Stir gently until well combined. Pour into prepared baking dish.
Topping:
In a large bowl, combine oats, flour, sugars, salt, and cinnamon. Add melted butter and stir until well combined. Sprinkle the topping over the strawberries.
Bake for 30-40 minutes until the fruit is bubbling and juicy and the topping is light golden brown. Cool slightly, serve warm with vanilla ice cream.