Butternut Squash Miso Soup

Name: Butternut Squash Miso Soup
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Cuisine: American
Ingredients: 1 medium butternut squash (peeled and cubed); 2 ½ tablespoons miso paste; 2 tablespoons olive oil; 1 zucchini (cubed); 1 onion (diced ); 2 cloves garlic (minced); 1 large russet or idaho potato ((or 2 small), peeled and cubed); 4 cups low sodium vegetable broth; 1 teaspoon fine sea salt; ½ teaspoon ground black pepper; 5 ounces baby spinach (optional); ½ teaspoon harissa paste (optional)