Preheat the oven to 425 degrees Fahrenheit.
Slice the bell peppers into strips.
Cut the potatoes into bite-sized pieces. Larger potatoes can be cut into quarters and very small potatoes can be halved.
Place the sausage, peppers, potatoes, olive oil, salt, and pepper in a large bowl and mix well until everything is thoroughly coated.
Place parchment paper on the sheet pan (optional).
Transfer the sausage, peppers, and potatoes to the sheet pan.
Cook for 30 to 40 minutes or until the potatoes are tender and can be easily pierced with a paring knife.
Taste for seasoning and serve!