Place 1/4 cup warm water in a large bowl. Sprinkle yeast over water, stir in sugar. Let stand 5 mins. Add remaining water, oil, and salt. Stir in flour until dough pulls away from side of bowl.
Turn dough onto lightly floured surface. Knead until smooth, 8-10 mins. Coat large bowl with cooking spray; place dough in bowl, turning to grease top. Cover loosely with plastic wrap. Let rise in warm place until almost done. 45 mins.
Preheat oven to 450. Punch down dough. Coat two 12-in. pizza pans with cooking spray; sprinkle pans with cornmeal. Divide dough in half. Roll dough to fit prepared pans; press dougb against edge to form rim. Bake crust for 10 mins.
Remove crust from oven and top with pizza sauce. Add toppings and cheese. Bake 15-20 mins. longer.