Place a pizza stone in the oven and preheat to 500°F. OR preheat your pizza oven (here’s the pizza oven we use).
Make the pizza sauce: Make the Homemade Pizza Sauce. (You’ll use about 1/2 cup for the pizza; reserve the remaining sauce and refrigerate for up to 1 week.)
Bake the pizza: When the oven is ready, dust a pizza peel with cornmeal or semolina flour. (If you don’t have a pizza peel, you can use a rimless baking sheet or the back of a rimmed baking sheet. But a pizza peel is well worth the investment!) Stretch the dough into a circle; see How to Stretch Pizza Dough for instructions. Then gently place the dough onto the pizza peel.
Spread a thin layer of the pizza sauce over the dough. Add the mozzarella cheese. Add the red pepper strips and sprinkle with feta cheese.
Use the pizza peel to carefully transfer the pizza onto the preheated pizza stone. Bake the pizza until the cheese and crust are nicely browned, about 5 to 7 minutes in the oven (or 1 to 2 minutes in a pizza oven).
Allow the pizza to cool for a minute or two before adding the fresh oregano leaves. Slice into pieces and serve immediately.