1 tbsp  Olive Oil

1  Onions , diced

1  Large Carrots , diced

2  Celery Sticks , diced (optional)

1  Garlic Cloves , crushed

250 g  Red Lentils , dried

400 g  Chopped Tomatoes , from a can

1 tsp  Dried Oregano

500 ml  Vegetable Stock

500 g  Spaghetti

Flat Parsley , chopped