Green Chile Stacked Enchiladas
Ingredients:
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1 tablespoon vegetable oil, or as needed
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16 (6 inch) corn tortillas, or more to taste
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4 boneless skinless chicken thighs, cut into chunks
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½ onion, diced
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½ cup diced mild green chiles
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1 (28 ounce) can green chile enchilada sauce
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1 (8 ounce) package shredded Monterey Jack cheese
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4 ounces shredded mozzarella cheese, or more to taste