Instead of a bag of ready-chopped veg, you can use almost anything you have in your cupboard or fridge. Use a potato, onion and one or two carrots as a base, then add additional chopped veg, such as broccoli, leeks, cauliflower, peppers, cabbage, etc.
My only change was using chicken base instead of vegetable stock.. my veggies were a mix of carrots, broccoli and cauliflower. I liked this pureed and served cold. - 22 Apr 2016