Mix The Tomatoes And Salt In A Mesh Strainer. Let Mixture Sit And Drain For 15 Minutes. Preheat Oven To 450 Degrees F (230 Degrees C). Combine The Drained Tomatoes, 8 Ounces Of Mozzarella Cheese, Onion, Basil, Pepper, Olive Oil, Jalapenos, Olives, And Mushrooms In A Bowl. Spread The Pizza Sauce Evenly Onto The Pizza Crusts. Distribute Tomato Mixture Over The Two Pizza Crusts Evenly. Sprinkle 8 Ounces Of Mozzarella Cheese And The Parmesan Cheese Over Both Pizzas. Bake Pizzas In Preheated Oven Until Cheese Is Completely Melted, 8 To 10 Minutes.