Ham and Swiss Croissant Casserole

Few breakfasts compare to the comforting embrace of a warm, savory casserole. The Ham and Swiss Croissant Casserole is a delectable marriage of buttery, flaky croissants, savory ham, and rich Swiss cheese, all enveloped in a creamy, custardy egg mixture. This dish is ideal for weekend brunches, holiday mornings, or any time you want to treat yourself and loved ones to a hearty meal that both satisfies and impresses. Let’s dive into the details of this delicious breakfast casserole that’s easy to prepare yet luxurious in taste and texture.

Ingredients for the Perfect Ham and Swiss Croissant Casserole

Here’s a quick breakdown of the ingredients you’ll need for this savory dish:

These simple ingredients come together to create a harmonious blend of textures and flavors that’ll leave you reaching for seconds.

Step-by-Step Instructions for the Ultimate Casserole

Let’s walk through the process of creating this fabulous dish.

Step 1: Preheat and Prepare

Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish with butter or non-stick spray to ensure easy serving and cleanup later. A well-prepared pan helps the casserole slide out easily, keeping every portion intact.

Step 2: Assemble the Croissant Base

Begin by slicing or tearing the croissants into bite-sized pieces. Croissants bring an unmatched flakiness to this casserole, so ensure you’re using fresh ones, preferably a day old for that perfect texture. Spread the croissant pieces evenly in your prepared baking dish, ensuring they cover the entire surface.

Step 3: Whisk the Egg Mixture

In a large mixing bowl, crack open the eggs and whisk them until smooth and fully blended. Add the half-and-half, Dijon mustard, salt, and pepper. Whisk these ingredients until everything is well combined, creating a smooth, velvety mixture that will form the custard base of your casserole. The mustard adds a subtle tang, enhancing the flavor profile without overpowering it.

Step 4: Pour and Layer

Carefully pour the egg mixture over the croissant pieces, making sure that all the pieces are evenly coated with the custard. This step is crucial for achieving a rich and moist casserole. The croissants will absorb the egg mixture, ensuring that every bite is packed with flavor.

Step 5: Add the Toppings

Now comes the time to layer the ham, green onions, and Swiss cheese on top of the croissant and egg mixture. Evenly distribute the diced ham over the top, followed by the sliced green onions. Finally, sprinkle the shredded Swiss cheese across the entire surface, ensuring every corner is covered. The cheese will melt beautifully in the oven, creating a golden, bubbly topping.

Step 6: Bake to Perfection

Cover the casserole dish with aluminum foil to prevent the top from over-browning during the initial stage of baking. Place the casserole in the preheated oven and bake for about 30 minutes. After the first 30 minutes, remove the foil and continue baking for an additional 15-20 minutes, or until the casserole is set in the center and the top has achieved a golden brown color. You’ll know it’s done when the cheese is melted and bubbly, and the croissants have a crisp texture on the edges.

Step 7: Serve and Enjoy

Once baked to perfection, remove the casserole from the oven and let it cool for a few minutes before serving. This allows the custard to set fully, making it easier to cut and serve. Garnish with additional green onions if desired for a pop of color and fresh flavor. Serve it hot, and enjoy the wonderful contrast of textures—crisp croissants, gooey cheese, and tender ham.