Heat the oil in a large saucepan; add the onions, garlic, carrot, capsicum (or bell pepper and zucchini (if using). Fry until vegetables are soft and fragrant (about 3 minutes). Add the beef and fry until browned. Add the tomato paste; pour in the wine and boil until it has reduced and thickened. Reduce heat and stir in the Passata, vegetable stock powder (or salt), and oregano.
Cover pan with a lid and simmer until the sauce has thickened, stirring occasionally (about 20-30 minutes). Turn off heat; add the cooking cream (or milk) and stir until combined.Season with salt and cracked black pepper, if desired.
Cook the spaghetti in a pot of boiling salted water. Drain; add 2 ladlefuls of the sauce and mix until pasta is covered. Divide between 6 serving dishes; top with extra sauce and sprinkle with Parmesan cheese and parsley.
Notes
This pairs amazingly with our easy cheesy garlic bread!For added vegetables, add 1 large zucchini, peeled and grated.