Preheat the oven to 180 ̊c and grease an oven proof baking dish.
Cook macaroni in boiling water until just al dente. Drain and set aside.
In a large frypan, heat oil over medium heat and cook onion for a few minutes until soft. Add beef mince and cook until well browned and any juice has dissipated. Well browned mince = flavour! Break apart the mince with a wooden spoon and then add carrots and soup mix and stir well. Pour in 2 cups of water and bring to the boil. Reduce heat and simmer for 15 minutes. Stir through tomato sauce, peas and macaroni and mix well.
Pour into the greased baking dish, top with cheese and bake for 15 minutes or until golden and melted.

This is such a child friendly meal, and you can add any vegetables you have on hand.