Using disposable gloves, cut the jalapeño in half and remove the seeds and membranes (that's the white stuff and ribs inside the pepper). Chop the pepper and discard the gloves before moving on with the recipe.
Place half of the bread cubes into a deep 9x13 pan that has been sprayed with cooking spray.
Sprinkle corn, jalapeños, onions, black olives, and shredded chicken evenly over the bread. Top with half of the cheese and the remaining bread.
Whisk together the eggs, milk, and seasonings. Pour the mixture evenly over the whole pan. Gently press bread down into the pan to ensure it's covered with the mixture. Top with remaining cheese.
Microwave for 35 minutes or until a knife inserted into the center of the pan comes out mostly clean. (See notes below for oven instructions.)
Let stand for 10 minutes before serving.
To serve, top with fresh-squeezed lime juice, salsa, and sour cream.
Notes
If your 9x13 pan won't fit inside your microwave, you can bake this. Cover it with foil and bake at 325 for 30 minutes. Remove the foil and bake another 15 to 20 minutes, until the bread is browned and a knife inserted into the center of the pan comes out mostly clean.This dish can be prepared, covered, and refrigerated overnight. Cover with foil and bake 45 minutes, then remove the foil and bake for an additional 15-20 minutes or until the bread is browned and a knife inserted into the center of the pan comes out mostly clean.