Harissa Carrot Soup

Name: Harissa Carrot Soup
Ingredients: 1 tbsp olive oil; 1 medium yellow onion, chopped (1 1/2 cups); 3 cloves garlic, finely chopped (about 1 Tbsp.); 2 tbsp mild harissa paste (such as Mina); 1 tbsp fresh grated ginger; 1 tsp cumin seeds; 1/2 tsp ground cinnamon; 3 lb carrots, peeled and roughly chopped; 4 cups lower-sodium vegetable broth; 2 cups pasta water; 2 tsp kosher salt; 2 tbsp fresh lemon juice; 1 tbsp honey; Toasted hazelnuts or walnuts; Greek yogurt, for serving; Mint leaves, for serving