Heat oil and butter in a large saucepan over medium-high heat. Add onion and garlic and cook, stirring, for 3 minutes or until onion softens. Add the mince and cook, stirring with a wooden spoon to break up any lumps, for 5 minutes or until the mince changes colour.
Add the tomato paste, wine, diced tomato, oregano, thyme and nutmeg, and bring to the boil. Reduce heat to medium and simmer, stirring occasionally, for 30 min or until sauce thickens. Taste and season with salt and pepper. Stir in the parsley.
Meanwhile, cook the spaghetti in a large saucepan of salted boiling water following packet directions until al dente. Drain.
Diivide the spaghetti among bowls and spoon over bolognaise sauce. Grate over the parmesan and serve immediately.
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