Recipe: Tomato-Free Spaghetti Bolognese

Please note, this recipe has been revised and reposted here – it’s taken nearly 5 years, but I’ve finally developed the best no-tomato spagheti bolognese. Super easy (and easily made vegan with mushrooms and lentils) and so, so tasty!
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Has anyone else managed to recreate recipes they thought were ‘no-goes’ due to allergies?