Place the greens, garlic, lemon juice, nuts, parmesan (if using), salt and pepper into the bowl of a food processor or blender and process until roughly chopped.
Scrape down the sides, then with the processor running, add the oil through the feed tube and process until it reaches the desired consistency. Taste and adjust the seasoning as necessary.
Heat gently and toss with pasta, serve with chicken or grain bowls, or spread on pizza crust or sandwiches!
