10ounceFrench or sourdough baguette, cut into 3/4-inch cubes (about 6 cups)
2cupsmixed cheese, Sharp cheddar + Monterey Jack cheese
Instructions
Heat the butter in a large frying pan over medium heat. Add the ham and green onions and cook for 3-5 minutes. Remove the pan from the heat and let it cool for 10 minutes.
Place the eggs in a large bowl and whisk. Add the milk, cream, mustard, salt, pepper, and basil and whisk to combine. Add the reserved ham, green onions, bread, and cheeses and stir to combine. Pour the mixture into a 13-by-9-inch baking dish
Cover the dish with aluminum foil and refrigerate overnight (or 2 nights).
Preheat oven to 350°F. Remove the casserole from the refrigerator and let it sit at room temperature.
Uncover the casserole and bake until a toothpick inserted into the center comes out clean, about 45 minutes.
Remove the pan to a wire rack, and let it cool for 10 minutes before serving.