Preheat the oven to 190° C w/ fan.
Clean & trim & chop the spring onions & the carrot.
Press the clove of garlic.
Add minced beef, vegetables & herbs as well as the tomato purée in a pan & start frying.
If it seems to dry add some olive oil (about 1 tsp!).
After about 10 min everything should be well done & well mixed.
Transfer to a bowl & set aside.
Discard bay leave.
Grate the Parmesan.
For the sauce mix all ingredients.
Slice the mozzarella as thin as possible.
Add some oil from the pan to the casserole & oil bottom & sides.
Add a solid layer of the tomato sauce.
Take one of the cannelloni & push it in the minced beef mess... & again... & again... The beef mess will start filling the pasta by itself.
Lay the filled pasta in the casserole.
Repeat for the next 8 cannelloni.
Add another layer of tomato sauce.
Distribute the mozzarella slices on top.
Bake in the oven for about 30 min.
If unsure make the test w/ the wooden pin...
Serve at once - attention: really, really hot!!!