- Finely chop all the vegetables and fry with the oil in a saucepan for 3–4 minutes.
- Add the lentils, tomatoes, oregano, stock cube and water. Bring to the boil. Season with salt and pepper. Leave to simmer for about 20 minutes until all the vegetables are cooked.
- In the meantime, put the spaghetti on to cook.
- When everything is cooked, drain the spaghetti and serve the bolognese mixture on the top. Grate some Parmesan-style or Cheddar cheese over the top.