It doesn't take much more than that to make soup in the conventional way.
We have a soup maker we are thrilled with........ME !!!!
I make soup at least 3 times a week and it is just so easy.
If you want an easy, no cook soup just open a tin of tomatoes, a tin of baked beans throw in some cooked potato, add whatever seasoning you like, I like it spicy so add crushed chillies and cumin. It is delicious and on a green day is syn free.
Making soup has to be one of the easiest forms of cooking there is.
Have a go, you might even enjoy it.