So I am always a weird soup evangelist, but this time of year, I'm a bit extra.
So just a reminder, making soup is easy, very forgiving, and you don't have to think about whether your veg looks good or not, just blend it up, so discount veg is your friend. Add some lentils and/or butter beans for heft.
You can fancy it up with flavoured oils, grated parmesan, some diced chorizo, whatever, but even plain, it's nutritious and warming and stores really well in the freezer.