Step 1

Boil pasta in a shallow pan with just enough water to cover, stirring often with a spatula or wooden spoon to prevent sticking.

Step 2

When pasta is al dente and there is a little water left in the pan, add the pesto and spinach if using. (If there's still quite a lot of water remaining, pour some off.)

Step 3

Turn off the heat and stir everything together until the pesto clings to the pasta and the spinach has wilted.

Step 4

Add salt and black pepper to taste.

Step 5

Eat straight out of the pan if you're a savage like me or optionally plate and enjoy a slightly more sophisticated meal.