Heat the oil in a large wide-based saucepan, add the spring onion and rice and cook over medium heat, stirring, for 2 minutes. Add stock and 1 cup (250ml) hot water and simmer over medium-low heat for about
10 minutes or until liquid has reduced and rice is almost cooked. Add spinach and parsley to rice mixture, then mix using a fork until combined. Cover with a tight-fitting lid and cook over low heat for a further 8 minutes or until rice is cooked.
Fluff the rice with a fork, then divide among 4 bowls and serve immediately with lemon halves.