INGREDIENTS
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8 ounces spaghetti
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2 cups grape tomatoes, halved lengthwise
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2 jalapeños, stemmed, seeded, and halved lengthwise
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4 cloves garlic, left whole
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1/2 yellow onion
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2 tablespoons (1/4 stick) unsalted butter
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2 tablespoons all-purpose flour
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2 cups whole milk, plus more as needed
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2 cups (8 ounces) shredded cheddar cheese
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2 cups (8 ounces) shredded monterey jack cheese
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1/2 teaspoon ground cumin
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1/4 teaspoon cayenne
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1/2 cup cilantro, chopped, plus more for garnishing
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2 teaspoons fresh lime juice
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Salt and black pepper
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4 cups cooked chicken, shredded