new Shepherd's Pie recipe

Shepherd's Pie from my favorites
 recipes it's  so delicious and here 
is the recipe for 6 people it takes 
20 min in preparation and 25 min 
in cooking , it contains some kinds 
of vegetable like carrots, onions, 
tomatoes, potato  .
ingredients:
- 600g minced beef 5% fat
- 3 carrots

- 2 onions
- 3 tomatoes
- 1 kg potato
- 20 cl of milk
- 35 g butter
- 1 tbsp whipping cream 3%
- 100 g grated cheese
- Olive oil
- Salt and pepper
- Thyme, bay leaf, nutmeg
method:
1. Peel the potatoes and cut them in half. In a saucepan of boiling salted water, cook 20-25 minutes depending on their size. -Peel the onions and cut them finely. Cut the tomatoes and diced carrots. In a pan, pour a little oil.
2. Add carrots and cook 1 minute, add the onions and sauté 2 minutes.
Add the meat, then the thyme and bay leaf carvings.
3. Cook about 10 minutes, stirring gently. Salt and pepper.
4. Preheat oven to 200 ° C (gas mark 6, 7). Once the potatoes cooked, drain well and pass them through a food mill. Add the cream, 25g butter and a pinch of nutmeg. Stir vigorously until a smooth puree.
5. In a buttered baking dish, place the meat. Then cover it with a nice layer of mashed potato. Sprinkle with grated cheese. Add the remaining 10g of butter cut into small pieces on top of the crust before putting in the oven about 15 minutes.