Yields: 8-10 servings
Cook pasta according to package directions; drain and rinse in cold water.
Combine the pasta, spinach and tomatoes in a large bowl.
Whisk the buttermilk, mayonnaise, lemon juice and chives in a medium bowl. Stir in 1/2 cup feta. Season with salt and pepper to taste. Pour the dressing over pasta mixture; gently toss to coat.
Cover and refrigerate for at least 1 hour or until serving.
Gently fold in remaining feta just before serving.
Serving Size Yields: 8-10 servings