Sweet Potato and Kale Tortilla Soup
Enjoy the tasty combination of vegetables in this soup, or add chicken for a non-vegetarian version.
Ingredients
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3 tablespoons olive oil, divided
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1 small yellow onion, chopped (about 1 cup)
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¾ teaspoon fine sea salt
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1 tablespoon chili powder
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1 tablespoon ground cumin
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2 teaspoons ground coriander
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2 large garlic cloves, chopped (about 1½ Tbsp.)
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1 (28-oz.) can whole peeled tomatoes, undrained
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1 large sweet potato (about 1 lb., 6 oz.), peeled and cut into 1-inch pieces (about 4½ cups)
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4 cups vegetable broth
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2 cups water
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6 (6-inch) corn tortillas
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1 small bunch kale (about 5 oz.), ribs removed and leaves torn into bite-size pieces (about 2 packed cups)
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2 cooked and shredded chicken (from 1 [3-lb.] rotisserie chicken) (optional)
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Freshly ground black pepper
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Lime wedges, for serving
Directions
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Preheat oven to 400 F with an oven rack in upper position.
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Heat 2 tablespoons of the oil in a large pot over medium-high. Add onion, and season with ¼ teaspoon of the salt; cook, stirring occasionally, until softened, about 3 minutes. Add chili powder, cumin, coriander, and garlic, and cook, stirring often, until fragrant, about 1 minute. Add tomatoes with juices, and cook, stirring often and breaking up with a spoon, until slightly reduced, 2 to 4 minutes.
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Add sweet potato, broth, and water, and bring to a boil. Reduce heat to medium-low, and simmer, partially covered, until potatoes are fork tender, 12 to 15 minutes.
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Meanwhile, brush remaining 1 tablespoon oil on both sides of tortillas; season with ¼ teaspoon of the salt. Stack tortillas, and cut into ½-inch strips; place in a single layer on a rimmed baking sheet. Bake in preheated oven on top rack until golden brown, 12 to 15 minutes, tossing halfway through.
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Stir kale into soup, and cook, covered, until wilted, 3 to 5 minutes. Stir 2 handfuls of tortilla strips into soup, and, if desired, chicken; cook until soup is heated through, about 2 minutes. Season with remaining ¼ teaspoon salt and several grinds black pepper. Serve with lime we