Preheat Your Oven: First things first, preheat your oven to 400°F (200°C). This will ensure the sausages and potatoes roast evenly.
Prepare the Ingredients: In a large mixing bowl, add the halved potatoes, minced garlic, chopped rosemary, salt, and pepper. Drizzle with olive oil and toss everything together until well coated.
Add the Sausage: Slice the sausages into bite-sized pieces and add them to the mixing bowl. Toss again to combine all the ingredients.
Spread on Baking Sheet: Transfer the mixture onto a baking sheet, spreading it out in a single layer to ensure even roasting.
Roast: Place the baking sheet in the preheated oven and roast for 30-35 minutes. Stir halfway through to promote even cooking.
Add Peppers (optional): If using, add the sliced bell peppers to the pan during the last 10 minutes of roasting for a pop of color and flavor.
Serve Hot: Once everything is golden brown, take it out of the oven and serve hot. Enjoy!