Preheat oven to 375 degrees F.
Mix all ingredients together in a small bowl.
Spray the bottom of your 9x9 baking dish with cooking spray. Line the bottom of the tray with two sheets of parchment paper so that the paper is draped over the outside for easy lifting of the final cheesecake out of the pan.
Place the crust in the pan and using the bottom of any flat cup, push the crust down to make it dense and even.
Bake for 5-6 minutes.
Add all ingredients into a food processor and mix until well combined.
Lower the oven temperature to 350 degrees F.
Pour the filing into the baking sheet on top of the crust. Smooth evenly using a rubber spatula and bake for 45 minutes.
Remove from the oven and let sit until it comes to room temperature then transfer to the refrigerator and chill for at least 4 hours.
Remove from the pan by lifting the parchment paper up and transfer to a cutting board. Slice 16 square bars by making four lengthwise cuts, turning 45 degrees and cutting another four cuts. Tip: if you want clean cuts, warm your knife under hot water each time you make a cut!
Vegan option: replace the 2 eggs with 2 "flax eggs" by mixing 3 tablespoons of flax meal with 1/2 cup + 1 tablespoon of warm water and let sit for a few minutes before adding into the other filling ingredients.