Fettucine with Peas, Asparagus, and Pancetta

INGREDIENTS

• 2 garlic cloves, pressed
• 2 cups shelled fresh green peas, blanched 1 minute in boiling water, drained, or frozen peas (do not thaw)
• 1 tablespoon finely grated lemon peel
• 1/4 cup chopped fresh Italian parsley, divided
• 3 tablespoons extra-virgin olive oil
• 1/2 cup finely grated Parmesan cheese plus additional for serving
• 3 ounces pancetta or bacon, chopped
• 12 ounces fettuccine or penne
• 3 tablespoons fresh lemon juice
• 1 bunch green onions, thinly sliced, white and pale green parts separated from dark green parts
• 1 1/4 pounds asparagus, trimmed, cut on diagonal into 1-inch pieces
• 1/3 cup heavy whipping cream
• 1/4 cup thinly sliced fresh basil, divided