Step 1

Preheat the oven to 400°F. Grease a 9x9-inch oven-proof glass casserole dish with cooking spray or butter.

Step 2

In a large bowl, beat together the eggs, milk, ranch seasoning mix and mustard until well combined. Stir in the cheese, ham and bread, and mix well.

Step 3

Pour the mixture into your prepared dish and spread out evenly. At this point, you can cover and hold in the fridge overnight, or bake immediately.

Step 4

When ready to bake, place in the oven and bake for about 30 minutes, until set and golden on top. Let rest 5 minutes before serving.