01 -
Grease a 9x13-inch baking dish with non-stick spray and set aside.
02 -
In a large bowl, beat eggs. Add whole milk, Dijon mustard, salt, and pepper; stir until combined.
03 -
Fold in bread cubes, shredded cheddar cheese, cooked sausage, and chopped bacon until evenly mixed.
04 -
Pour mixture into prepared baking dish, cover tightly, and refrigerate for at least 8 hours or overnight.
05 -
Remove casserole from refrigerator 30 minutes before baking to reach room temperature. Preheat oven to 350°F (175°C).
06 -
Bake uncovered for 40 minutes or until a knife inserted in the center comes out clean and the top is golden brown.
07 -
Allow casserole to cool slightly before serving warm.