Heat the olive oil in a large skillet over medium heat.
Add the turkey sausage and season with salt and black pepper, if desired.
Cook, stirring occasionally, until the turkey is slightly browned and no longer pink, around 6-8 minutes. While cooking, break up the sausage into small chunks with a wooden spoon.
Add the sweet potatoes to the skillet and continue cooking until they become soft and slightly crisp around the edges, approximately 10-12 minutes.
Add the broccoli and season with additional salt and black pepper, if desired. Stir to combine.
Cover and allow the broccoli to steam for 2-3 minutes.
Remove the lid and sprinkle the shredded Mozzarella on top.
Cover for another 1-2 minutes or until the cheese is nicely melted.
Remove from heat and serve immediately.