Preheat and Prepare: Preheat the oven to 375°F. Slice the croissants in half lengthwise and arrange the bottom halves in a baking dish. Preheating ensures even cooking. Arranging in a dish keeps the croissants together and prevents them from spreading.

Layer the Filling: Layer each croissant bottom with 2 slices of ham and 2 slices of Swiss cheese. Layering ensures even distribution of the filling, so every bite is flavorful.

Place the Tops: Place the croissant tops on. Placing the tops creates a sandwich, enclosing the filling and preparing the croissants for baking.

Prepare the Topping Mixture: In a small bowl, mix together the melted butter, honey, and Dijon mustard. Mixing creates a flavorful topping that will enhance the croissants.

Brush the Topping: Brush this mixture evenly over the tops of the croissants. Brushing ensures even coating, so every croissant is golden brown and flavorful.

Sprinkle Seasoning: Sprinkle with everything bagel seasoning. Sprinkling adds flavor and texture, creating a visually appealing and delicious topping.

Bake: Bake for 15-17 minutes until the croissants are toasted golden brown and the cheese is melted and bubbly. Baking until golden and bubbly ensures the croissants are cooked and the cheese is melted to perfection.

Cool and Serve: Allow to cool for a few minutes before serving so you don’t burn yourself on the hot cheese. Enjoy! Cooling slightly prevents burns and allows the cheese to set.