Ham & Cheese Party Platter Leftover Breakfast Casserole

The aroma always takes me back. As a child, the day after a family gathering was almost as exciting as the event itself. Not because of the presents, but for the promise of the “day-after” casserole. My grandmother, a queen of resourceful cooking, would survey the landscape of leftover meats and cheeses with a gleam in her eye, transforming what others saw as scraps into something truly special. The savory scent of baking ham and cheese mingled with the yeasty tang of toasted bread filled the kitchen, a comforting reminder that even leftovers could be a culinary masterpiece. This recipe captures that feeling, a tribute to resourceful deliciousness.

Recipe Overview

• Prep Time: 15 minutes
• Cook Time: 23-35 minutes
• Total Time: 38-50 minutes
• Servings: 6-8
• Yield: 1 13×9 inch pan
• Dietary Type: Adaptable

Ingredients

Creative Bottom Stuff:

• 8 hamburger buns, cubed (use the squished or dry ones)
• 1/2 lb deli ham, diced
• 10-15 slices cheese (American, cheddar, Swiss, or a mixture)

Custard:

• 6 eggs, beaten
• 1/2 – 1 cup milk
• Yellow mustard
• Salt and pepper to taste

Toppings:

• Tomatoes, sliced (optional)
• Onion rings, diced (optional)
• Black olives, sliced (optional, or green olives)
• Red pepper, diced (optional, or green peppers)
• 6-8 cheese slices
• 5 slices summer sausage, diced

Equipment Needed

• 13×9 inch baking pan
• Large mixing bowl
• Whisk
• Knife and cutting board
• Aluminum foil

Instructions

1. Prepare the Pan and Bread Base: Begin by greasing a 13×9 inch pan with butter or cooking spray. This will prevent the casserole from sticking. Spread the cubed hamburger buns evenly over the entire bottom of the prepared pan. Don’t worry if the buns are a little dry or squished – that’s perfect for soaking up the custard later. Use more or fewer buns depending on the size of your pan; the goal is to create a fairly dense bread layer.

2. Layer the Meats and Cheeses: Next, evenly sprinkle the diced deli ham and cheese slices over the bread cubes. Try to distribute the ham and cheese so that every bite will be flavorful. Don’t be afraid to mix different types of cheese for a more complex flavor profile. Set the pan aside.

3. Prepare the Custard: In a large mixing bowl, whisk together the 6 eggs and 1/2 to 1 cup of milk until the mixture is frothy. Add several squirts of yellow mustard. The mustard adds a subtle tang that complements the ham and cheese beautifully. Season generously with salt and pepper to taste. Beat the mixture well to ensure the ingredients are fully incorporated.

4. Combine Custard and Bottom Layers: Pour the egg mixture evenly over the ham, cheese, and bread cubes in the pan. Gently press down on the bread cubes with a spatula to ensure they are fully saturated with the custard.

5. Customize the Toppings (Optional): This is where you can get creative and tailor the casserole to your family’s preferences. Consider adding sliced tomatoes, diced onion rings, sliced black olives (or green), and diced red pepper (or green peppers). Distribute the toppings evenly across the surface of the casserole.

6. Add the Final Layer of Cheese and Sausage: Place another layer of leftover cheese slices over the toppings (or directly on the egg mixture if you’re skipping the veggies). Sprinkle the diced summer sausage artfully over the cheese. You can also add olive slices or any other tasty tidbits you have on hand.

7. Chill or Rest (Optional): Cover the pan tightly with aluminum foil. At this stage, you can either chill the casserole in the refrigerator until morning or leave it on the counter if you’re comfortable doing so. Chilling allows the bread to fully absorb the custard, resulting in a more cohesive and flavorful casserole. However, leaving it on the counter will work if you want a quicker breakfast.

8. Bake the Casserole: Preheat your oven to 350°F (175°C). Place the foil-covered pan in the preheated oven and bake for 20-30 minutes.

9. Finish Baking: After the initial baking period, remove the foil and continue baking for another 3-5 minutes, or until the top is bubbly and set. The casserole is done when the custard is firm to the touch and the cheese is melted and lightly browned.

10. Cool Slightly and Serve: Remove the casserole from the oven and let it cool for a few minutes before slicing and serving. This allows the casserole to set a bit more, making it easier to cut and serve.

Expert Tips & Tricks

• Adjust the Milk: The amount of milk you need will depend on the dryness of your bread. If your bread is very dry, you may need to add a bit more milk to ensure the custard is fully absorbed.
• Mustard Power: Don’t skip the mustard! It adds a crucial tangy depth to the flavor.
• Prevent Burning: If the top of the casserole is browning too quickly, you can loosely cover it with foil for the last few minutes of baking.
• Make-Ahead Marvel: This casserole is fantastic for making ahead. Assemble it the night before and store it in the refrigerator, then bake it in the morning.
• Cheese Choices: Experiment with different cheese combinations. Pepper jack, Gruyere, or even a bit of crumbled feta can add interesting flavor.
• Bread Alternatives: If you don’t have hamburger buns, use other bread like croissants, bagels, or even stale dinner rolls. Cut them into cubes, and you’re set.
• Custard Consistency: Ensure that the eggs are well beaten into the milk mixture. This contributes to a smoother and more even cooking of the custard, preventing any watery or separated areas within the casserole.

Serving & Storage Suggestions

Serve the Ham & Cheese Party Platter Leftover Breakfast Casserole warm, straight from the oven. It’s delicious on its own, but you can also pair it with a side of fresh fruit or a simple green salad for a more complete meal.

Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days. To reheat, simply microwave individual portions until warmed through, or reheat the entire casserole in a preheated oven at 350°F (175°C) for about 15-20 minutes, or until heated through. You can also freeze the casserole for longer storage. Wrap it tightly in plastic wrap and then aluminum foil. Frozen casserole will keep for up to 2-3 months. Thaw it in the refrigerator overnight before reheating.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	784.2 kcal	N/A
Calories from Fat	425 g	54%
Total Fat	47.3 g	72%
Saturated Fat	24.8 g	124%
Cholesterol	328.7 mg	109%
Sodium	2283.8 mg	95%
Total Carbohydrate	42 g	13%
Dietary Fiber	1.7 g	6%
Sugars	4.1 g	16%
Protein	46.2 g	92%

Note: Nutritional information is an estimate and may vary based on specific ingredients and portion sizes.

Variations & Substitutions

• Vegetarian Option: Omit the ham and sausage and add more vegetables, such as sautéed mushrooms, spinach, or bell peppers.
• Spicy Kick: Add a pinch of red pepper flakes or a dash of hot sauce to the custard for a spicy kick.
• Dairy-Free: Substitute the milk with almond milk or soy milk and use dairy-free cheese.
• Gluten-Free: Use gluten-free hamburger buns or bread for the base.
• Italian Twist: Add Italian seasoning and some sun-dried tomatoes for an Italian-inspired flavor.
• Mexican Fiesta: Incorporate chorizo, diced jalapeños, and cheddar cheese for a zesty Mexican version.
• Holiday Ham: Use leftover holiday ham from Thanksgiving, Christmas or Easter.

FAQs (Frequently Asked Questions)

Q: Can I prepare this casserole ahead of time?
A: Absolutely! Assembling it the night before and storing it in the refrigerator is a great way to save time in the morning. It allows the bread to fully absorb the custard, resulting in a more flavorful dish.

Q: Can I use different types of cheese?
A: Definitely! Feel free to experiment with your favorite cheeses, such as cheddar, Swiss, Gruyere, Monterey Jack, or even a mix of several.

Q: What if I don’t have hamburger buns?
A: Any type of bread will work! Croissants, bagels, dinner rolls, or even sliced bread, cut into cubes, can be used as a substitute.

Q: Can I freeze the leftover casserole?
A: Yes, you can freeze it for up to 2-3 months. Wrap it tightly in plastic wrap and then aluminum foil before freezing. Thaw it in the refrigerator overnight before reheating.

Q: Can I add vegetables to the casserole?
A: Absolutely! Feel free to add any vegetables you like, such as sautéed mushrooms, spinach, bell peppers, or onions.

Final Thoughts

This Ham & Cheese Party Platter Leftover Breakfast Casserole is more than just a way to use up leftovers; it’s a celebration of resourcefulness and deliciousness. I encourage you to try this recipe, adapt it to your own preferences and available ingredients, and share it with your loved ones. It’s a hearty, comforting, and customizable dish that’s perfect for breakfast, brunch, or even a casual dinner. Enjoy, and please share your feedback and variations with me! Perhaps pair this dish with a light mimosa or a strong cup of coffee for a delightful start to your day.