The internet is swimming in basil pesto recipes, so here's something a little different: rocket and walnut pesto.
100g rocket (arugula); two handfuls walnuts (get the broken pieces - they're cheaper); 2 Tbsp olive oil; 1 small clove of garlic, roughly chopped; 1 Tbsp nutritional yeast; 2 tsp lemon juice; salt and pepper.
Whizz everything together apart from the nutritional yeast. Once you have a not-too-uniform paste, stir in the nutritional yeast. Taste and adjust seasoning.
This can easily be done with a stick/hand-held blender in a jug to save on washing up.
Rocket walnut pesto is great on toast.
And of course on pasta.
Green as green can be, and a nice change from basil pesto.