Preheat your oven to 400°F (200°C).

Wash and slice your bell peppers, red onion, broccoli florets, and zucchini. Halve the baby potatoes.

Cut the Italian sausage into bite-sized pieces and add to the vegetable bowl.

Drizzle olive oil over the mixture, then sprinkle garlic powder, onion powder, paprika, salt, and pepper. Toss until well coated.

Spread the sausage and vegetable mixture in a single layer on a large sheet pan.

Bake for 30-35 minutes, stirring halfway through, until sausages are cooked and veggies are tender.

Remove from oven, let cool for a minute, then garnish with parsley and serve warm.