In a mixing bowl, combine warm water and yeast. Let it sit for 5 minutes until frothy.

Add flour, salt, and olive oil to the yeast mixture. Mix until a dough forms.

Knead the dough on a floured surface for about 5-7 minutes until smooth.

Place the dough in a greased bowl, cover, and let it rise for 1 hour or until doubled in size.

Preheat the outdoor pizza oven according to the manufacturer's instructions.

Once the dough has risen, punch it down and divide it into two equal portions.

Roll out each portion on a floured surface to your desired thickness.

Transfer the rolled dough onto a pizza peel dusted with flour.

Spread pizza sauce over the dough, leaving a small border for the crust.

Top with mozzarella cheese, pepperoni, bell peppers, onions, and oregano.

Slide the pizza into the preheated oven and cook for about 8-10 minutes, or until the crust is golden and cheese is bubbly.

Remove the pizza from the oven, let it cool for a minute, slice, and serve.