When using a built-in pizza oven, it's important to monitor the cooking time closely. The high heat of the oven means that pizzas can cook very quickly, usually within a few minutes. Keep a close eye on the pizza to prevent it from burning. It's also a good idea to rotate the pizza halfway through the cooking process to ensure even browning. Remember, practice makes perfect, and with time, you'll develop a sense of timing that works best for your oven.