Someone made a pizza in an oven that had been used within the last 24 hours for meat with liquid. The oven was not kashered in between. They were each made on pans and the oven was clean. What’s the story with the pizza, the oven, and does anything need to be done to continue to use it for meat?
In retrospect we can rely on the opinions that hold that there isn’t zeiah in an oven, and since the items were on separate trays and the oven was clean, the story with the pizza has a happy ending. You can eat the pizza, and it is preferable that the oven be turned up to the highest setting and kept on, until it reaches maximum temperature for a few minutes.