scallions or chives for optional topping before serving
Get Recipe Ingredients
Instructions
Prepare the Casserole:
In a large bowl, whisk together the eggs, milk, and dijon mustard.
Reserve a quarter of the diced red and green peppers.
To the egg mixture, stir in the ham, onion, remaining peppers, and bread.
Pour the mixture into a 9x13 casserole dish that's been sprayed with non-stick baking spray.
Top with the cheddar cheese and pepper jack cheese.
Add the reserved green and red peppers.
Cover with plastic wrap and place in the refrigerator overnight or up to 12 hours
Bake the Casserole:
Remove the casserole from the refrigerator and allow it to sit on the counter for 30 minutes.
Preheat the oven to 350°F.
Remove the cover from the casserole and bake for 50 to 60 minutes. If you notice the casserole top is getting too brown, cover with aluminum foil.
Remove from the oven and top with the chopped scallions or chives if desired.
Serve while warm
Notes
By preparing an overnight breakfast casserole, there will be plenty of free time Christmas morning to enjoy family and friends without worrying about getting last minute preparations together. All you have to do is preheat the oven right before guests arrive and sit back and relax!