Mixed Berry Cheesecake Slab Pie

Each summer, our raspberry bushes are out of control, racing up and down our fence as if they own the place. We adore them, despite their wild tendencies, and I am thankful for the deep pinks and reds peeking out at every turn. Mixed berry pie is always on our list of things to bake, and a little cream cheese tucked into the pie crust helps balance out the tart flavor of the raspberries without having to add piles of extra sugar. I often throw a grated apple in with my pie filling, which ad