Gather your ingredients together.
Toast the pine nuts in the oven for 10-15 minutes at 400.
Wash greens, remove the stems, roll them up into a bundle and chop.
Peel garlic and put into a mortar and pestle with kosher salt and mash.
Heat the olive oil and butter in a heavy skillet over medium heat.
Add the onion, garlic and salt, stirring while it cooks until the garlic is just golden and fragrant.
Add the greens and sauté 5-8 minutes until they are bright green in color and starting to soften.
Season with more salt and pepper to taste.