I think the microwave makes all bread, including pizza crust, tough and
doughy. I use my toaster oven or regular oven for heating bread items.

I have never tried melting cheese in the microwave, either. Even for queso
dip, I make it in a double boiler.

I like the occasional toasted cheese sandwich made by putting the
cheese between two slices of bread and toasting it like that in the
toaster oven. It is a bare-bones type sandwich...I don't even use a
spread of any kind. But I like weird stuff sometimes. ;-))

N.