In a large nonstick pan, combine the warm water, olive oil, flour, sugar, yeast, and salt. Use a spatula to stir the ingredients, then smooth the dough to the edges of the pan.
2. Step
Spread the marinara sauce over the dough, all the way to the edges. Sprinkle the mozzarella evenly over the sauce, then top with the pepperoni.
3. Step
Place over medium heat, cover, and cook for 10 minutes with the vent covered.
4. Step
Uncover the vent and cook for 5 more minutes, until the edges are crispy.
5. Step
Slide the pizza out of the pan onto a cutting board and let cool for 5 minutes.