1: Preheat oven to 400°F.
2: On a baking sheet spritzed with nonstick spray, lay out Italian sausage.
3: Next to the sausage, place sliced peppers and onions onto the baking sheet.
4: Drizzle everything with olive oil and add a pinch of kosher salt and 1/2 teaspoon of pepper.
5: Bake at 400°F for 45-55 minutes, turning sausage and veggies halfway through.
6: Serve inside a roll or on top of rice.
