You can make potato salad, latkes (potato pancakes), Reibkeuchen (similar),
boxty bread, fsh cakes, mash with or without extra addtions (think bacon
bits, all kinds of green vegetabels, horseraish, cheese, mustard, etc etc).
Potato bread, baked dishes such as a gratin (easy, loevly).

A gratin is especially easy and great to serve to guests.
As are baked potatoes.

Having gusts over could help you use up potatoes faster AND reinforce
realtionships to boot