Place the green lentils in a saucpan and cover with plenty of boiling water
Bring to the boil and simmer for about 40 minutes until soft, adding more water if it is getting dry
Heat the oil in a large heavy bottomed frying pan
Add the onions and cook until soft and transparent
Add the garlic and pepper and cook for a further 5 minutes
Add the lentils
Add the tin of tomatoes and stir well
Add the grated carrots
Add the stock, tomato puree and oregano
Stir thoroughly, cover and reduce the heat to a simmer
Cook for 30-40 minutes
Just 15 minutes before the bolognese sauce will be ready, boil the kettle with plenty of water
Use a large saucepan
If using pasta shapes, place in the pan, cover with boiling water, and stir
Simmer for 12-15 minutes or according to packet instructions
If using spaghetti, pour the water into the pan and bring back to boil
Place the spaghetti into the pan, vertically and gently lower it into the pan as it softens in the water
Once all into the water, stir gently to prevent sticking
Simmer for 12-15 minutes or according to packet instructions