Pumpkin Spice Butternut Squash Soup

Name: Pumpkin Spice Butternut Squash Soup
Ingredients: 1 tablespoon olive oil; ⅓ cup chopped onion; 2 cloves garlic, minced; 8 cups peeled and cubed butternut squash; ⅔ cup chopped apple; ½ cup chopped carrot; ¾ teaspoon kosher salt; ½ teaspoon pumpkin pie spice; ¼ teaspoon black pepper; 1 (14.5 ounce) can reduced-sodium chicken broth; 1 (14 ounce) can unsweetened light coconut milk; 1 tablespoon packed brown sugar (see Tips); 5 tablespoons plain nonfat Greek yogurt; 5 tablespoons salted roasted hulled pumpkin seeds (pepitas)