Halve or quarter your potatoes, and toss in a pot of water. Parboil potatoes for 5-8 minutes until they are easier to pierce with a fork. (You can skip this step, but potatoes may take a bit longer to cook in the oven.)
Place potatoes in a mixing bowl, and top with avocado oil, minced garlic, Italian seasoning, and salt and pepper to taste. Toss until potatoes are covered and seasoning is evenly distributed.
Spread potatoes on a greased baking sheet and sprinkle with Parmesan cheese.