Preheat oven to 350 degrees. Lightly grease a 9 x 13 baking pan. Mix the ingredients for the crust together (mixture will be somewhat crumbly and dry but will hold together when pressed). Press the crust into the bottom and about half way up the sides of the pan.
Add all of filling ingredients to a separate bowl. Mix with a whisk or mixer until well blended. Pour over crust.
Combine all of topping ingredients in a bowl. Mix until well blended (you want a crumb like consistency). Sprinkle evenly over your filling.
Bake for 1 hour then remove from oven. Allow to cool completely. Serve and enjoy!