Cook the pasta according to the packet instructions, drain and keep warm.
While the pasta is cooking, add the cauliflower florets to another pot of boiling water, bring back to the boil and then cook for about 8 minutes until the cauliflower is tender.
Remove the cauliflower from the heat, drain the water and let cool for a few minutes.
Add the cauliflower, vegetable stock, almond milk, nutmeg and seasoning to a high powered blender and blend until smooth.
Stir the cauliflower sauce into the warm pasta and serve topped with some greens.