Line a 9-x-9-inch baking pan with foil so that it extends up the sides. Spray with nonstick spray. Line the bottom of the pan with a square of parchment paper.

Melt the coconut oil in a large pot over low heat. Add the marshmallows and cook, stirring, until melted and smooth. Immediately remove the pot from the heat and stir in the Rice Krispies and shredded coconut.

Spoon the mixture into the prepared pan and use a small square of wax paper to press it down evenly. With your hands, crush the strawberries over the Rice Krispie treats (you will have some strawberry "dust" and some larger chunks.) Use another small square of wax paper to press the strawberries gently into the Rice Krispie treats so that they stick.

Cool completely. Use the foil to lift the entire piece out of the pan, then cut into squares and serve.