1. Begin by heating olive oil in a large skillet over medium-high heat. Add the sliced smoked sausage and cook, turning occasionally, until lightly browned on both sides, about 3 minutes per side.

2. Once the sausage has a nice sear, stir in the diced potatoes. Continue cooking, stirring occasionally, until the potatoes start to crisp up and turn golden, about 8-10 minutes.

3. In a small bowl, whisk together the brown sugar, soy sauce, Dijon mustard, garlic powder, and onion powder until the mixture is smooth and well-combined.

4. Pour the glaze over the sausage and potatoes, and stir to ensure everything is evenly coated. Reduce the heat to medium, cover the skillet, and let the dish simmer for 10-12 minutes, stirring occasionally, until the potatoes are tender and the glaze has thickened.

5. Uncover the skillet and let the glaze continue to cling to the sausage and potatoes for 1-2 minutes more. Season with salt and pepper to taste. Finally, sprinkle with fresh chopped parsley for a pop of color and freshness.