Remove the Lamb mince from your refrigerator and season with salt and pepper, we do not want this to be "Fridge Cold" when we start to cook it.
Peel and dice the onion as small as you can.
Peel and dice the Carrots
Peel the garlic cloves and either squeeze them through a garlic crusher or chop/grate the garlic into small pieces.
Remove the Rosemary leaves from the stem.
Chop the Rosemary leaves; this only needs to be rough and quick.
Next, heat the pan you are cooking in - fry pan that has deep sides is good.
Add your olive oil and heat gently as the pan is pre-heated the oil will heat quickly.
add the Onion and garlic and fry untill golden brown
add your diced carrots and continue cooking
When the vegetables are golden add the Lamb mince, breaking it up into small pieces as you add to the pan.
Continue cooking, stirring occasionally, and allowing the Lamb mince to brown all over.
Add the diced tomatoes and cook until any juice from the tomatoes has evaporated.
Add the red wine and Worcestershire sauce, turn the heat down on your stove, and simmer until the wine and Worcestershire sauce starts to look like a syrup.
Add the chicken stock and Rosemary leaves and simmer a little longer - as you simmer, the water content evaporates and the sauce you are building becomes rich, thick, and the flavour concentrates.
When the sauce has concentrated (known as reduced), we should have an equal amount of sauce and mince. Enough sauce to hold the mince and vegetables together for a delicious, rich filling - taste and adjust the seasoning to your preference.
Pour into your baking dish and allow to cool.