Put oats, coconut, sugar (if using), milk and vanilla into a small saucepan. Cook over medium heat until milk starts to bubble and then reduce to low heat. Cook for about 5 minutes or until it reaches desired consistency, making sure you stir regularly with a spoon to stop it from sticking to the pot.
Meanwhile, peel the kiwi fruit and slice or chop into small pieces.
To serve, put the cooked oats into a bowl and top with the sliced (or chopped) kiwi fruit. Sprinkle with the ground pepitas and serve immediately.