Preheat the oven to 350°.

Split each croissant in half lengthwise. On the top half of each croissant, spread 1 tablespoon of honey mustard, and on the bottom half, spread 1½ tablespoon of the preserves or marmalade of your choice.

Pile 2-3 slices of turkey on the bottom of each croissant. Layer that with 2 slices each of havarti and close each croissant.

Place each sandwich on a baking sheet lined with parchment.

Meanwhile, in a small bowl, combine butter, garlic, honey, and bagel seasoning.

Brush the top of each croissant liberally with the honey garlic butter.

Bake for 5-8 minutes, or until the cheese is melted and the tops of the croissants are golden brown.

Remove the sandwiches from the oven, open each one up, and stuff with ¼ cup of arugula. Close the sandwiches and drizzle with a bit more honey if desired.

Serve immediately with additional honey mustard and jam/preserves on the side.