In a large mixing bowl, combine flour, instant yeast, and kosher salt.
Add lukewarm water and 1/4 cup of the olive oil to the dry ingredients. Stir until a sticky dough forms.
Cover the bowl with a damp cloth. Let the dough rise in a warm place until doubled in size, about 1 hour.
Preheat your oven to 425°F.
Spread the remaining 1/4 cup of olive oil in a 9x13-inch baking pan.
Transfer the risen dough to the pan, spreading it out to cover the bottom. Use your fingers to create dimples across the dough.
Spread the tomato sauce evenly over the dough, leaving a small border around the edges.
Sprinkle the shredded mozzarella cheese over the sauce. Add any optional toppings, like pepperoni or fresh basil.
Bake in the preheated oven for 20-25 minutes, or until the edges are golden brown and the cheese is bubbly.
Remove from oven, let cool slightly, cut into squares, and serve.