Butter both sides of the sandwich bread and place in the bottom of a 9x13 baking dish. Make sure bread is one flat layer and completely covers the bottom of the pan. You may need to cut or tear a few pieces to fit.
Add sausage crumbles and shredded cheese evenly over the top of the bread.
In a large mixing bowl, whisk together eggs, milk, salt and pepper. Alternatively, you can also use a blender for this step. Once completely scrambled, pour over the top of the sausage and cheese. Cover with plastic wrap and store overnight in the refrigerator (at least 6 hours.)
When ready to bake, remove baking pan from the refrigerator and preheat the oven to 375* Let the pan sit out at room temperature at least 15-20 minutes prior to baking. Then bake for 20-25 minutes or until the edges are golden brown and the egg mixture is set. Allow to cool for about 5-10 minutes before serving.