A microplane grater - it's been really great for dealing with ginger, and even garlic (although for garlic I mostly prefer to just squish it with the flat side of my knife). I've also used the slicer end to make chips out of baby potatoes and turnips.

Another go-to for me is a conventional pressure cooker - I use it when I'm feeling lazy, I just chuck everything in it - lentils/beans + rice + veggies + condiments, and it's all done in one go, only takes 15-20 minutes and there's no need to soak stuff beforehand. The best part is that I put all my ingredients in just a single ceramic bowl, so cleaning the cooker is super easy (just rinse it with water), and I can eat directly off the bowl, which saves me from having to use a separate dish.