QFT. IMHO, there is NO comparison between a slice reheated in a toaster oven and one warmed in a microwave. Toaster oven is the ONLY way to go when it comes to heating a slice. I set the oven for "medium" toast and the slice comes out nice and crispy and the cheese is perfectly bubbly.
I came across this post above and just like to comment. Has anyone here ever tried
using a combination of microwave and toaster oven for re-heating FROZEN pizza?
1.) Start up the toaster oven leaving it on TOAST.
2.) As the toaster oven is heating up, take a single small slice of FROZEN pizza
and microwave it on HIGH for about 35 seconds to thaw it out and get the
cheese bubbling a bit on the edges.
3.) Transfer the slice of pizza from the microwave to the HOT toaster oven
set on TOAST and cook just until you see the cheese just beginning to brown.
For me, this results in a slice that is almost the same texture as fresh baked and it
takes less than 5 minutes. However, depending upon the thickness of *your* pizza
crust and how well you originally cooked the crust, your results will likely be different.
I have found that it's best to over cook the crust just a bit if you plan to freeze
and reheat the pizza, otherwise the reheated pizza will be too soggy or limp.