Combine flour, parmesan, salt, and pepper in a resealable bag.
Add 2-3 slices of potato to bag, and shake to coat with the flour mixture.
Place coated potatoes in a single layer in the butter in the pan.
Sprinkle any remaining parmesan over potatoes.
Bake for 30 minutes.
Flip potatoes over, and sprinkle with Italian seasoning.
Continue baking an additional 15-20 minutes, or until tender.
Notes
Butter: I use salted butter.
Salt: Since I use salted butter and parmesan cheese is on the saltier side, I use very little salt in the coating (about 1/4 teaspoon). You can feel free to omit the salt or use more salt according to your tastes.
Pepper: I usually use about 1/2 teaspoon of salt.
Potatoes: There's no need to peel the potatoes before use.