• In a small bowl, combine yeast, sugar, and warm water.
• Let stand for 5 minutes until foamy.
• In a large bowl, mix flour, cornmeal, olive oil, and salt.
• Make a well in the center and pour in the yeast mixture.
• Stir to form a soft dough, adding more flour if necessary.
• Turn the dough onto a floured board and knead for 7–10 minutes until it becomes supple and elastic.
• Transfer the dough to a large bowl, cover it, and let it rise in a warm spot until doubled in size, about 1 hour.
• Punch down the dough.

To assemble the pizza:

• Roll the dough into a 13-inch circle.
• Transfer the dough to an oiled 12-inch pizza pan, folding the excess dough over to create a small rim.
• Spread the pizza sauce evenly over the dough.
• Sprinkle most of the mozzarella cheese over the sauce, reserving some for the topping.
• Add cooked meats, vegetables, and the remaining mozzarella cheese.
• Top with grated Parmesan cheese.
• Let the assembled pizza rise in a warm spot for 25 minutes.

To bake the pizza:

• Preheat the oven to 475°F (245°C).
• Bake the pizza for about 25 minutes, or until the crust is golden and the cheese is bubbly.
• Let the pizza rest for 5 minutes before slicing and serving.