With regards to the vegetables, it's really up to you. The challenge is to get as much veg as possible in it. If you add enough frozen spinach to the cheese sauce it turns green which looks pretty funky.
Unlike my previous recipe, this one requires 3 pans and results in a lot of washing up, but it's worth it.
All-the-veg mac and cheese (adapted from a well-loved student cookbook I had at uni)
