
Blend the basil leaves, walnuts, garlic, nutritional yeast, juice of half the lemon, olive oil and ½ tsp salt until smooth for a dairy-free pesto.
Boil the penne in salted water; add the trimmed, halved green beans for the last 4 minutes.
Save ½ cup pasta water, then drain.
Toss the pasta, green beans and drained chickpeas with the pesto, adding pasta water to loosen.
Season with salt and more lemon. Swap the walnuts for sunflower seeds for a nut-free version.
Photo: DinnerDrop