Pesto: Add cilantro to the food processor.
Add walnuts. You can use any nuts you'd like for a pesto such as walnuts, pecans, almonds, cashews, or traditionally pine nuts.
Add grated cheese and garlic. You can use any kind of grated cheese you like. I used my favorite, Pecorino Romano. However you may have to adjust the measurements with saltier cheeses.
Blend until smooth.
Season to taste with lime juice, black pepper, & sea salt.
Add olive oil & blend again. If you like a little kick, add some cayenne pepper.
The chicken was pan cooked, seasoned with sea salt, black pepper, & garlic powder, & lime juice was added towards the end.