Holiday Potato Bake

Ingredients (11)

• 3 pounds potatoes, peeled and cut into 1/2-inch cubes
• 3 medium carrots, shredded
• 3 celery ribs, trimmed and diced
• 1 medium onion, diced
• 2 cups shredded sharp cheddar cheese, divided
• 1/2 cup butter, cubed
• 4 ounces cream cheese, softened
• 1/4 cup plus 1 tablespoon minced fresh parsley, divided
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• 1/4 cup chopped ripe olives