Preheat the oven to 350 degrees.

Line a 9x13 pan with parchment paper.

Spray with nonstick cooking spray.

Melt butter in a small saucepan over medium heat.

Add the flour whisking after each addition.

Continue to cook over medium heat stirring for 2 minutes. (Do not brown)

Gradually pour in the milk continuing to whisk as you add it.

Bring the mixture to a boil, whisking constantly for about 2-3 minutes ( or until thickened).

Reduce heat to low.

Slowly add the cheddar cheese.

Remove the saucepan from the heat

Add the salt, pepper, and nutmeg.

Keep warm.

Set aside.

Place the bottom portion of the rolls on the parchment lined pan.

Layer 1/2 of the turkey evenly over the rolls.

Layer the cheddar cheese slices evenly on top of the turkey.

Sprinkle the bacon on top of the cheese covered turkey slices.

Top this with the tomato slices. (a slice on each roll)

Carefully spread the Mornay sauce over the tomatoes.

Add another even layer of the rest of the turkey slices.

Put the top half of the buns over the second layer of sliced turkey.

Set aside.

Whisk the melted butter, Dijon mustard, poppy seeds, Worcestershire sauce, salt and pepper together in a small bowl until well combined.

Gradually pour this mixture evenly over top of rolls.

Place aluminum foil over the pan.

Let the pan stand at room temperature for 10 minutes.

Bake at 350 degrees for 20 minutes.( or until cheese is melted.)

Remove the foil.

Return the pan to the oven and continue to cook for 5 minutes. (or until the top has lightly browned)

Cut into individual sliders.