Preheat oven to 350 degrees.
Toss apples with water, maple syrup, lemon juice, and cinnamon in a medium bowl.
To make the Topping, toss oats, almond flour, almonds, coconut oil, maple syrup, cinnamon, and sea salt in a separate medium bowl.
Grease 9x9 pan with cooking spray.
Place apples in the baking pan, and top with topping (oat mixture).
Bake for 40 minutes, until bubbly.
Let cool for 5 mins and enjoy.