Instant Pot 7-in-1 Multicooker, 3-Quart, $79.95 on Amazon
If you're unfamiliar with the program, Weight Watchers uses a points system to help you track what you're eating and balance your day's intake — high protein foods, fruits, and veggies are all zero points.
Legumes like beans and lentils are all considered "free," so as a vegetarian, I rely heavily on them to get enough protein through the week and keep my points in-check. I like to buy them dry because it's much more cost effective and easier to impart flavor when you cook them yourself — but if you've ever tried to cook black beans from their dry state, you know it can be a full day-long process to soak and simmer them.
So instead, I batch-prep them using the Instant Pot's pressure-cooking function, which only takes about 20 minutes. The first time I used it, I was completely dumbfounded at how easy and fast it was. Now, I often make a big batch of beans or lentils over the weekend and use them in different ways through the week to keep things interesting. I also use the slow-cooker function a lot for stews and soups.