Place pasta in a pot of salted boiling water and cook.
In a food processor, blend peas, spinach, a clove of garlic, and a tablespoon of olive oil. Alternatively, bash, mash, and chop the ingredients.
Once blended, mix in basil pesto and season with salt and pepper. Set aside.
Just before removing pasta from the heat, reserve half a mug of pasta water.
Strain pasta and return it to the pot.
Mix in the pesto and add some of the reserved pasta water to loosen the sauce.
Season with a drizzle of olive oil, salt, pepper, parmesan, and lemon (optional).
