Overnight Mexican Breakfast Strata

Cook and stir chorizo in a large skillet over medium heat until browned and crumbly, 5 to 7 minutes. Transfer to a bowl using a slotted spoon, reserving 1 tablespoon of drippings in the pan. Add onions to the skillet and cook, stirring frequently, until tender, about 10 minutes. Stir in poblano peppers and bell pepper; cook until just tender, about 5 minutes. Remove from heat and return chorizo to the skillet.

Lightly grease a 3-quart rectangle or oval casserole dish. Spread 1/2 of the bread into the prepared dish and top with 1/2 of the chorizo mixture. Repeat with remaining bread and chorizo.

Whisk eggs, milk, oregano, and paprika together in a large bowl. Pour egg mixture evenly over bread and sausage. Cover and chill, 8 hours to overnight.

Preheat the oven to 325 degrees F (165 degrees C).

Bake in the preheated oven, covered, for 30 minutes. Uncover and bake until an instant-read thermometer pressed into the center reads 170 degrees F (degrees C), 30 to 45 minutes more. Sprinkle with queso fresco during the last 5 minutes of baking. Let stand for 10 minutes and sprinkle with cilantro.