In a large bowl, combine the oats, almond flour, coconut oil, maple syrup, salt, and vanilla extract. Stir the mixture until all ingredients are evenly combined. The mixture should be crumbly but moist enough to hold together when pressed.
Grease an 8x8-inch baking dish with nonstick cooking spray. Then, line the dish with parchment paper for easy removal of the bars after baking.
Take half of the oat crumble mixture and press it evenly into the bottom of the prepared baking dish. Use your fingers to gently press it down to form the crust layer.
Place the baking dish in the oven and bake the crust at 375°F for 15 minutes, or until it is lightly golden brown. Once done, remove it from the oven and set it aside to cool slightly.
Carefully pour the strawberry filling into the crust, spreading it evenly to cover the entire surface.
Sprinkle the remaining oat crumble evenly over the strawberry filling. Don’t worry about covering it completely—this will create a nice, textured topping.
Return the dish to the oven and bake for an additional 25 minutes, or until the topping looks set and golden brown. You’ll know it’s done when the edges are slightly crispy and the top is firm to the touch.