Preheat oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish.
Arrange Lil’ Smokies in a single layer.
Whisk melted butter, ranch mix, brown sugar, garlic powder, and pepper juice together until smooth.
Pour sauce over sausages and scatter sliced peppers on top.
Bake 20–25 minutes, stirring halfway through for even coating.
Serve warm, optionally keeping in slow cooker on Warm.
