Preheat oven to 450 degrees

Pie crust

Prepare the pie crust by mixing the flour and salt in a bowl.

Add the cold butter and shortening.  Using a pastry cutter or fork cut the fats into the floour mixture until it resembles small peas.

Using a tablespoon, add a little water to the flour mixture.  With a fork stir everything together until the dough just comes together.  It should not be like cookie dough.  You should be able to squeeze dough together.

Place the dough between 2 pieces of plastic wrap, shaping it into a ball.

Using a rolling pin, roll the dough out into a circle.

Place in a pie dish and trim overhanging dough.  Leave a good inch around the lip.  Crimp the dough and prick bottom and sides of pie crust.

Sprinkle with parmesan cheese and 1/4 cup of mozarella and place in oven for 10 minutes.

Remove from oven and allow to cool while you prepare filling.

Filling

Slice the tomatoes thin and place on a double layer of paper towels.

Lightly salt tomatoes slices and leave them for 10 minutes.  Important step!

Combine 1/4 cup cheddar cheese and 1/2 cup mozarella cheese in a small bowl.

Sprinkle tomato slices with garlic powder, oregano and black pepper to taste.

Layer 1/3 of the tomato slices, 1/3 of the cheese mixture and 1/3 of the basil.  Repeat layers.

In a small bowl combine remaining 1/4 cup cheddar cheese, 1/4 cup mozarella and 1/4 cup plain yogurt.  Dot over the final layer of tomatoes.

Reduce oven to 350 degrees and bake the pie uncovered for 35-40 minutes.  Cool before serving.