INGREDIENTS
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3 cups fat-free, less-sodium chicken broth
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1 1/2 cups finely chopped onion, divided
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2 teaspoons dried oregano
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1/2 teaspoon salt
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4 (6-ounce) skinless, boneless chicken breast halves
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2 garlic cloves, minced
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1 bay leaf
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1/2 cup fat-free sour cream
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3 cups Green Chile Sauce
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Cooking spray
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16 (6-inch) corn tortillas
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3/4 cup (3 ounces) shredded Monterey Jack cheese
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1/2 cup (2 ounces) shredded cheddar cheese