First Step: Preheat and Prepare Baking Sheet. Preheat the oven to 375°F (190°C). Line a baking sheet with parchment paper or a silicone baking mat for easy cleanup and to prevent sticking.

Second Step: Prepare Filling Mixture. In a bowl, mix the diced or shredded cooked chicken breast, deli ham slices (chopped if necessary), and Swiss cheese, which can be folded if slices are too large. Add about a teaspoon of Italian seasoning and a touch of Dijon mustard if desired. Gently toss the ingredients to combine evenly.

Third Step: Prepare Crescent Dough. Unroll the refrigerated crescent rolls and arrange into a rectangle, sealing seams if using crescent dough sheet; alternatively, keep individual crescent triangles separate. Lightly sprinkle Italian seasoning over the dough surface for extra flavor.

Fourth Step: Add Filling and Roll. Place a generous amount of the chicken, ham, and cheese filling along the long edge of the dough rectangle or at the wide end of each triangle. Tightly roll the dough over the filling toward the point, tucking in the ends underneath to seal and prevent leakage of the filling.

Fifth Step: Arrange and Brush Rolls. Place the rolls seam-side down on the prepared baking sheet. Optionally, brush the tops with melted butter and sprinkle additional Italian seasoning or Parmesan cheese for a golden, crispy finish.

Sixth Step: Bake. Bake the crescent rolls in the preheated oven for 18 to 20 minutes or until golden brown and cooked through. The internal temperature should reach 165°F (74°C) to ensure safety.

Final Step: Serve. Remove the rolls from the oven and brush tops with melted butter if not already done. Serve warm, optionally paired with a honey Dijon dipping sauce made by mixing honey and Dijon mustard until smooth.