Preheat oven to 450°.
Bring a pot of water to a boil on the stovetop and boil potatoes for 15 minutes.
Drain the potatoes and put them back in the empty pot for 5 minutes to dry.
Lay hot potatoes onto a large cookie sheet.
Pour the olive oil over the potatoes and toss them around with a spoon to coat each potato.
Use a potato masher to gently smash each potato.
Mix the dried herbs and the salt and pepper and sprinkle the mixture over the potatoes.
Sprinkle each potato with the grated parmesan cheese.
Bake the potatoes for 20 minutes.
Garnish with fresh herbs if desired.
Serve with ranch dipping sauce.