Preheat the oven to 350°F (175°C).

Slice the croissants into halves or thirds and arrange on a countertop.

In a large mixing bowl, whisk together eggs, heavy cream or milk, salt, garlic salt, pepper, and fresh rosemary until well combined.

Dunk each piece of croissant into the egg mixture making sure they are well-coated but not oversoaked.

Grease a 9x13-inch baking dish and arrange the coated croissant pieces in a single layer.

Fill the gaps with layers of deli meat and cheese.

Combine melted butter, honey, and fresh herbs in a separate bowl until blended.

Drizzle the honey butter sauce evenly over the croissant and cheese layers.

Bake for about 15 minutes until the cheese is melted and bubbly, and the top is golden brown.

Let cool for a few minutes, then slice and serve.