The Absolute Best Lentil Soup

Name: The Absolute Best Lentil Soup
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Cuisine: Asian, Middle Eastern
Ingredients: 2 medium carrots; 1 medium yellow onion; 4 cloves garlic; 2 cups dried red lentils (about 1 pound); 3 tablespoons olive oil; 1 tablespoon curry powder; 1 teaspoon ground cumin; 1 teaspoon dried thyme; 1/2 teaspoon kosher salt; 1 (15-ounce) can tomato sauce; 6 cups low-sodium chicken or vegetable broth; 5 cups baby spinach (about 5 ounces)