I've recently started making a very easy courgette and tomato soup at work.
Amounts are approximate...
Olive oil
2 courgettes...chopped
1 onion...chopped
2 cloves garlic
Ground cumin,sweet paprika,ground coriander...1/2 TSP each,pinch...or more...of dried chillie flakes,knorr veg or chicken stock cube
2 tins chopped tomatoes...or fresh if wanted
Gently heat the olive oil,add the courgettes,onion and garlic. Sauté until the veg start to soften. Add the spices and cook a bit more. Add the tomatoes and stock cube. Simmer for 30 minutes. Adjust seasoning. Add some water if too thick. Blitz with a hand blender.