Can you bake two pans of scalloped potatoes at once?

Yes. Baked potatoes are usually cooked at 400o C for 1 hour while most cakes bake at 350o C. You will simply need to adjust your baking time for the potato, adding approx. 20 min. Alternately you can increase the baking temp when the cake is removed and adjust your time by about only 10 min.