Heat a little olive oil in a large pan and fry the chopped onion over a fairly high heat until soft, for around 5 minutes. Add the garlic and soya mince and fry until they both brown. Add the red pepper and courgette and cook for another 3-4 minutes.
Add the chopped tomatoes to the pan. If your tomatoes are quite chunky, try to break them up with a wooden spoon. Add in the tomato puree to thicken the sauce together with some oregano, basil and a pinch of salt and simmer for around 25-30 minutes.
When the sauce is nearly finished, cook the spaghetti pasta following instructions on the pack. Once cooked, drain and arrange on a plate. Add a good spoonful of the Bolognese sauce on top and garnish with fresh herbs. Enjoy!