I do a butternut squash and red pepper soup, which I blend down to be really smooth.
its just 2 red peppers chopped up and out on a baking tray with frylight, chilli flakes and garlic granules roast in the oven. Then a chopped onion, chopped garlic cloves however many you want, softened in a bit of water in a large soup pan for a couple of mins then chopped butter nut squash in the pan keep stir frying it so it doesn't burn do this for couple of mins also. Add enough vegetable stock (I use two cubes) to cover the vegetables in the pan, add the peppers which should now be roasted, bring it all to the boil, then let it simmer until the butter nut squash is cooked through usually takes about 20 mins or so. Then blitz it all up in a blender and its done!