cook Jimmy Dean sausage until browned and crumbly. Drain well and let cool slightly. Prepare the egg mixture: In a large bowl
whisk together eggs
milk
dry mustard
salt
and pepper until fully combined. Assemble the casserole: Lightly grease a 9×13-inch baking dish. Spread cubed bread evenly in the dish. Sprinkle cooked sausage and cheeses over the bread. Pour the egg mixture evenly over everything. Press down lightly so the bread soaks up the liquid. Rest or refrigerate (optional): You can bake immediately
or cover and refrigerate overnight for even richer flavor. Bake: Preheat oven to 350°F (175°C). Bake uncovered for 40–45 minutes
or until golden brown and the center is set. Cool and serve: Let rest for 10 minutes before slicing. Serve warm — perfect with hot sauce or ketchup on the side!