Preheat oven to 325 degrees F. Spray a 9x13-inch baking dish with nonstick cooking spray.
Slice rolls horizontally (keeping them connected) and place the bottom half in the prepared pan. Layer on turkey and cheese.
In a small mixing bowl, whisk together melted butter substitute, dijon, brown sugar, Worcestershire sauce, salt and onion powder then spread half the mixture on the inside of the top half the rolls and place on top of the sliders in the pan.
Brush remaining half of mixture on top of the rolls and sprinkle bagel seasoning on top. Bake, uncovered, for 15-20 minutes, or until the tops of the rolls are golden brown and cheese is melted.
Remove from the oven, cut into individual sandwiches and serve.