Preheat the oven to 425°F (220°C) to get it nice and hot for roasting.
Cube your sweet potatoes, chop the red bell pepper, and slice the yellow onion. Place them in a large mixing bowl.
Drizzle the vegetables with olive oil, salt, and pepper. Toss to coat them evenly.
Slice the Italian sausage into bite-sized pieces and add them to the bowl. Toss everything together so it's well mixed.
Pour the mixture onto a large sheet pan in a single layer for even cooking.
In a small bowl, whisk together the honey, minced garlic, and soy sauce.
Drizzle the honey garlic sauce over the sausage and vegetables, ensuring even coverage.
Roast in the preheated oven for about 25-30 minutes, until the sweet potatoes are tender and the sausage has a nice golden brown color.
Once done, remove from the oven, garnish with fresh parsley if desired, and serve hot.