Preheat oven to 350 degrees. Grease a 13x9 inch casserole dish and set aside.

In a large bowl, whisk together the flour, baking powder, and salt.

Add the cubed butter and mix together with a fork until the flour turns course and resembles peas.

Slowly mix in the cold milk until a dough forms.

Pour out the dough onto a floured surface and knead 8-10 times.

Roll out the dough and cut it into 2 inch pieces.

Toss the dough with the pasta sauce, 1 cup mozzarella, 1/2 cup pepperoni, Italian seasoning, and garlic powder.

Spread the pizza dough evenly into the greased cookie sheet and top with the remaining mozzarella, pepperoni, black olives, and Parmesan cheese.

Bake for 40-45 minutes, until fully set. The dough will be firm to the touch in the center. If it is still squishy, give it a few more minutes.