you aren't supposed to kashur back and forth between milk and meat. IINM though, you can bake pizza in a meat oven. it isn't liquid so there is nothing to cause absorptions
Really? Why especially if you have self clean, why can't you kasher back and forth? Wait 24 hours between uses.
I'm not a rabbi, but just because there are no liquids doesn't mean there's no moisture when baking a pizza. The sauce, cheese, and any vegetables you may have on top release moisture. I never heard of being able to cook dairy pizza in a meat oven. What's to stop you from baking dairy cookies, or any liquid-free food, in a meat oven based on that reason?