Preheat your oven to 400°F (200°C) and prepare a baking dish by spraying it with nonstick cooking spray.

Slice the kielbasa sausage crosswise every half inch without cutting all the way through to create pockets.

In a mixing bowl, combine yellow mustard, honey, and paprika until well-blended to create the glaze.

Generously coat the sliced kielbasa with the mustard glaze, ensuring to fill the pockets.

Place the glazed kielbasa bites in the baking dish and bake for 20-25 minutes until golden brown.

Remove from the oven, let cool slightly, and sprinkle fresh parsley before serving warm.