Heat a large cast iron skillet over medium high heat. When pan is hot add the butter. Allow the butter to melt and add the asparagus. Cook for 3-5 minutes, occasionally turning the asparagus over so it cooks evenly.
For the Pistachio Chimichurri:
Place all ingredients except the olive oil into a food processor fitted with a metal blade and process for 2 minutes, scraping the sides every so often. Slowly add the olive oil. Reserve at room temperature. Use as an accompaniment for the Lamb Belly or any other grilled or braised meats.
Suggested Pairing: Citron Vodka Martini, American IPA, Viognier/Marsanne/Roussane