Add some oil to a large pan.
Add the onions and garlic, fry over a medium heat until softened.
Add the beef, carrots and mushrooms cook until all beef is browned.
Drain any excess fat out of pan into another dish.
Add the chopped tomatoes, passata, tomato puree and oregano to the pan
Mix everything together and leave to cool
Ready for the freezer
Divide the mixture into sealable zip lock bags - 1 cup per person.
Once cool label the bag and flatten ready for the freezer.
Ready to Eat
You can cook this from frozen (although best defrosted overnight).
Heat in a saucepan over medium to low heat or microwave until piping hot.
Serve with spaghetti and a side salad.