Preheat the oven 200°C, Fan 180°C, 400°F, Gas 6 and rub some oil around the inside of a muffin tin or insert muffin cases.
Measure the milk into a bowl, add the frozen corn or peas and finely grate the courgettes in.
Break the egg into the bowl, grate the cheese, add the oil, parsley, and tomato flavour paste and mix all together.
Add the flour into the bowl, stir to combine, and mix well.
Divide the mixture between the muffin cases.
Bake for 25-28 minutes.
