1. One large burger bun (you could use small round pitta breads if you prefer thinner pizzas).
2. Thirty millilitres (that's about two tablespoons) of tomato and onion pizza topping from a jar.
3. Seventy five grams of mozzarella cheese (you can use cheddar cheese if you prefer. Cheddar won't go 'stringy' when it is cooked, as mozzarella does).
4. One mushroom.
5. A quarter of a green pepper.
6. Some mustard and cress.
7. Four slices of peeled kiwi fruit and a grape.