Prep: 1. Bring a pot of water to a boil. 2. Zest and juice lemon Make: 1. Place peas in a mesh strainer; set in boiling water for 1 minute, then rinse peas under cold water. 2. Cook pasta in boiling water according to package directions; drain and set aside in bowl. 3. Meanwhile, place 1 cup peas in a blender or food processor; set aside remaining peas. 4. Puree in blender with peas: 3 tablespoons water, 1 tablespoon tarragon, oil, lemon zest, salt, pepper, and garlic. 5. Add pea mixture to pasta; toss to coat. 6. Mix into pasta: reserved peas, 1 tablespoon tarragon, arugula, and lemon juice.
This is also great topped with feta.