Step 1

Add the passata, lentils, vegetable stock and oregano to a large saucepan.

Step 2

Bring to the boil, cover loosely with a lid and simmer for 15 minutes until the lentils are soft.

Step 3

Use either a stick blender or stand blender to blitz the sauce until smooth.

Step 4

If the sauce seems a little too thick add some water until it reaches the right consistency.

Step 5

Season to taste with salt and pepper (skip this if serving to babies).

Step 6

Mix the sauce with cooked pasta and serve immediately.