I use mine to cook and reheat pizza all the time too. Get yourself a good pizza stone. Like others have said, 10-12 mins at 450-500 does the trick to cook pizza. 400-450 for 6-8 mins to reheat.
I use a ‘Pizza Steel’ vs a Pizza stone, it works the same way that Grill grates work, concentrating the heat.
I place it on the Left of my T1300 and set at 450 the steel shows 600 on the IR gun...
I’ve done pizza on the T grill twice. The last 3 times I did pizza was in my oven. Every time using a pizza stone. Every time the pizzas came out great to excellent. I will continue to make pizza in my oven.Thanks. Since we always see these pizza ovens in restaurants, burning wood, one wonders why there isn't a hint of wood smoke in those pizzas... maybe the super high temps reduce greatly the unburned compounds that would affect taste.