Quick and easy spaghetti bolognese

i've tried many version of spaghetti bolognese and i love them all...this is another version of it...it is always the kids' favourites!

1 packet spaghetti, prepared according to the package
400g minced meat/chicken
2 tbsp olive oil
4 garlic , crushed
1 onion, chopped
a handful of fresh mushroom, chopped
1 carrot, chopped
2 celery sticks, chopped
400ml beef stock
400 ml passata (Italian tomato puree)

440g can of chopped tomato (i used whole tomato)
salt and pepper to taste
1 tbsp dried oregano or a handful of fresh oregano, chopped
grated parmesan cheese to serve with (optional)

• heat oil in a pan. add in the mince meat and fry till brown
• add in the vegetables - onion, garlic, mushroom, celery and carrot.
  
• add in the passata and beef stock.
• season to taste. add in the oregano
• let simmer till the sauce is a bit thicken
• serve with the spaghetti and sprinkle some parmesan cheese on top