This sauce is my go-to for expiring herbs and greens. I toss whatever is looking sad in the crisper into it, but my favourites are parsley, basil, mint, baby kale, scallions, oregano and cilantro. I use them in different quantities and the sauce is always a little bit different which keeps things interesting. If you don't have a pressure cooker, feel free to use a can of beans (they won't have exactly the same texture as freshly cooked beans, but will work in a pinch!) or cook however you like your beans.This makes a large serving of beans so feel free to eat half now and save the rest for another meal, like this crostini.