about 9-12 cups of bread. I use baguettes or rolls and tear them into nice size pieces and let them sit on a baking sheet to stale a bit....but it isn't essential. You can use whatever bread you have, but I don't recommend biscuits.
about 9 large eggs
1 cup half and half or milk
salt and pepper
below are some suggestions...make sure all meat and veggies are cooked before putting them in the strata
cheese, sauteed mushrooms, caramelized onions, chorizo, zucchini, goat cheese, ground beef, breakfast sausage,