Chicken tortilla casserole, also known as racetrack casserole

chicken

sprig cilantro

jalapeño, cut in half

kosher salt

black peppercorns

Or

cooked chicken, roasted or poached, shredded

chicken broth

vegetable oil

medium yellow onion, diced

red bell pepper, seeded and diced

jalapeños, seeded and diced

garlic, minced

tomatoes and green chiles, such as Ro-Tel

chopped cilantro, plus more for garnishing

chili powder, plus more for garnishing

ground cumin

dried thyme

Salt

corn tortillas, quartered

shredded Monterey Jack

shredded Cheddar

Salsa, for serving

Sour cream, for serving

Guacamole, for serving