Angel Hair with Arugula Pesto and Grilled Shrimp

I happened to see part of a show that I rarely watch, and I also happened to have a bit of arugula on its last leg. What makes this dish interesting is the lemon zest at the end. The recipe doesn't say what to do with it, other than use it as garnish, but on the show, she used a microplane and zested right on top of the shrimp just before serving. That made the recipe good. Without the zest, it was have been "just ok".

• Angel Hair with Arugula Pesto and Grilled Shrimp (recipe courtesy Giada De Laurentiis, The Food Network)
• Sourdough bread with Sauteed Garlic Butter (Fine Cooking #43, p. 49)
• Riff 2004 Pinot Grigio