In large bowl, whisk together eggs, milk, cream, salt and pepper until well combined. Add green onions, tomatoes, cilantro, chipotle pepper, 1 cup cheese, chorizo and mushroom mixture. Toss with bread cubes until combined and evenly moist. Pour into 13 in. x 9 in. oblong pan. Sprinkle remaining cheese over top. Cover with aluminum foil and refrigerate overnight.