Put a large saucepan of water with 1/2 tsp salt on to boil for the pasta. Halve, peel and thinly slice the shallot. Peel and grate the garlic (or use a garlic press). Trim the courgette. Use a peeler to peel long ribbons down the length of the courgette, stopping at the spongy centre.
Finely chop the chives (use scissors if easier). Zest and halve the lemon.

Once boiling, add the rigatoni to the water and bring back to the boil. Cook until tender, 12 mins.
When ready, reserve some of the pasta water (see ingredients for amount), then drain in a colander.
Pop the pasta back into the pan, drizzle with oil and stir through to stop it sticking together.

Meanwhile, heat a drizzle of oil in a large frying pan on medium heat. Once hot, add the courgette ribbons and season with salt and pepper. Cook until softened, 2-3 mins, then stir in the garlic and cook for 1 min more.
Add the spinach a handful at a time and cook until wilted and piping hot, 1-2 mins. Pop the cooked greens into a large bowl and cover with foil to keep warm.

Put your (now empty) frying pan back on medium heat with a drizzle of oil.
Once hot, add the shallot and cook until softened, stirring occasionally, 4-5 mins. Stir in the veg stock paste and reserved pasta water, then simmer until reduced by half, 3-4 mins. Mix in the creme fraiche and heat through until piping hot, then season with pepper.
Stir through the chives and three quarters of the grated hard Italian style cheese.

Add the cooked pasta to your sauce along with half the greens and stir together. Add a splash of water to loosen if needed.
Add a pinch of lemon zest and a squeeze of lemon juice. Taste and add more lemon juice, salt and pepper if needed.

Share the creamy pasta between your bowls and top with the remaining greens. Finish with a sprinkle of the remaining hard Italian style cheese. Enjoy!