Brown pie crust (like Pillsbury in the refrig section)
Slice several large ripe tomatoes and drain the juice and pat dry.
Mix approx 1/2 mayo with approx 2 T grated parmesan cheese
Grate 1 cup mozarella cheese
Layer these ingredients in the browned crust, be generous with the mozzarella (ie: grate more if necessary). Salt and pepper between layers.
Make sure the top layer is the mozarella cheese. You should have only 2 or three layers of tomatos.
Place the oven preheated to 375 F and cook til top layer is lightly browned.