Potato and Leek soup - it is all pureed so won't go all weird lol

Potato bake usually freezes well, best to heat it in the oven from frozen.

Home made chips are good - you cut and par fry (or boil) them, freeze in a single layer on a tray then when they are frozen just pop them in a snap lock bag.

in fact most things if you heat them in the oven straight from frozen will turn out ok because you won't the effect of the cellular breakdown that occurs in vegetables when they are frozen and thawed.

HTH