2 poblano peppers
1 T. vegetable oil
2 boneless, skinless chicken breast halves, halved horizontally (or try Chorizo)
Coarse salt and freshly ground pepper
1/2 white onion, sliced
2 cloves garlic, minced
1 tsp. ground cumin
4 ounces white cheddar cheese, shredded (about 1 C.)
4 ounces Monterey Jack cheese, shredded (about 1 C.)
4 crusty white sandwich rolls, such as Kaiser rolls, split and top half hollowed out
Carrot, Jicama, and Red Cabbage Slaw
Mexican crema, for serving
Plantain Chips, for serving

Preheat broiler. Roast peppers directly over a low gas flame or under the broiler, turning frequently with tongs, until blackened on all sides. Place in a bowl; cover tightly with plastic wrap. Let cool. Peel off charred skins; discard seeds and stems. Thinly slice crosswise and set aside. Heat oil in a large cast-iron skillet over medium-high heat. Season chicken with salt and pepper and cook, turning once, until browned, about 2 minutes per side. Remove chicken from skillet and transfer to a rimmed baking sheet. Add sliced poblanos, onion, garlic, and cumin to skillet; season with a pinch of salt. Cook, stirring, until onion is soft and translucent. Top chicken with poblano mixture and sprinkle with cheeses. Place under broiler; broil until cheese is melted and bubbly, about 2 minutes. To assemble, place chicken on bottom halves of rolls; top with crema and slaw. Sandwich with top halves of rolls; serve.