Asparagus, Goat Cheese and Lemon Pasta

Ingredients

• pound spiral-shaped pasta
• pound slender asparagus spears, trimmed, cut into 1- to 1 1/2-inch pieces
• olive oil
• tablespoon finely grated lemon peel
• teaspoons chopped fresh tarragon plus more for garnish
• to 5 1/2-ounce log soft fresh goat cheese
• Fresh lemon juice to taste