Carrot and cauliflower.
Just lightly boil them in a pan with a bit of seasoning and blitz when done. Tastes all buttery and comforting but it's really low calorie. Sometimes I start by sweating a chopped onion. Sometimes I chuck a spoon of bouillon powder in. Serve with black pepper or a splodge of creme Fraiche if you fancy. Or just eat as it comes.
Surprisingly good.
Got any good soups to share?