PSA: pesto is incredibly simple to make at home, and way way way better than store-bought pesto. At minima you need olive oil, garlic, some green leafy things (basil, spinach, parsley... I've done some with only parsly stems), some sort of hard cheese, salt and some sort of mixer. Adding nuts, using good EVOO, multiple cheeses and a pestle&mortar gives even better results, but even without that it'll be delicious!