Sandwich French Toast Casserole

Ingredients

• cooking spray
• 6 slices whole wheat bread , or more to taste
• 1 tablespoon butter , or as needed
• 12 slices deli ham , or more to taste
• 6 slices Swiss cheese , or more to taste
• 0.5 cups milk
• 4 eggs
• 1 teaspoon Worcestershire sauce
• 0.5 teaspoons mustard powder
• salt and ground black pepper to taste

Instructions

1. 1

   Preheat oven to 350 degrees F (175 degrees C). Spray the inside of a 9x13-inch casserole dish with cooking spray.

2. 2

   Spread butter on one side of each bread slice; top each bread slice with 2 slices ham and 1 slice Swiss cheese. Arrange open-faced sandwiches in the prepared casserole dish, overlapping them to fit.

3. 3

   Whisk milk, eggs, Worcestershire sauce, mustard powder, salt, and pepper together in a bowl; pour milk mixture over the open-faced sandwiches. Allow milk mixture to soak in for at least 15 minutes.

4. 4

   Bake in the preheated oven until eggs are set and casserole is cooked through, about 20 minutes.