Peel and slice sweet potatoes and onions and spread evenly in foil lined 9 x 13 inch pan.
Drizzle ½ tablespoon olive oil, 1 teaspoon Italian seasoning, 1 teaspoon dried parsley flakes, salt, and pepper over the potatoes.
Roast for 10 minutes.
After the sweet potatoes and onions have roasted for 10 minutes, push them evenly to both sides of the pan.
Place the pork loin in the middle.
In a small bowl, mix together the remaining olive oil, Italian seasoning, parsley flakes from the sweet potato mixture, and add in the minced garlic and Parmesan cheese. Brush the mixture over the pork loin, coating it evenly.
Roast uncovered for 30 minutes, or until inside is no longer pink.
Slice roast and serve with sweet potatoes and onions on the side.
Notes
We have only made this recipe using sweet potatoes. However, you could easily switch things up, and make this recipe using any kind of potato. Baby red potatoes or russet potatoes would taste delicious. They would all work great and taste amazing, once seasoned.We have only made this recipe in the oven, but a slow cooker would also work, I am sure. We would recommend cooking it on low for about 4 hours. If you cook it on high, you could run the risk of drying it out. We recommend following the recipe for the best results, but again, I am sure a slow cooker would work great, even with the potatoes (no matter what kind you use).