Method

1. Preheat your oven to 180°C / 350°F / Gas Mark 4
2. Cook the potatoes and carrots in boiling water and until tender, around 20 minutes
3. Meanwhile heat the vegetable oil in a small saucepan and cook the onion until softened
4. Add the minced meat to the onion and cook, stirring occasionally, until browned all over. Drain off any excess fat
5. Add the tinned tomatoes. Cover, bring to the boil and then simmer for about 20 minutes, then transfer to a casserole dish
6. When the potatoes and carrots are cooked, drain them and return to the saucepan. Mash the potatoes and carrots together with a potato masher or potato ricer until smooth
7. Spoon the carrot and potato mixture on top of the minced meat mixture and bake in the pre-heated oven for 30 minutes or until the top starts to brown