Wash the potatoes and boil the potatoes in a pan with enough water and salt, for about 20 to 25 minutes.
After 25 minutes of boiling, drain the water and wait for the potatoes to cool down.
Transfer the potatoes to a large bowl, add the oil and enough slat, mix well with the hands to coat all the potatoes with the oil and salt.
Preheat oven to 400 degree Fahrenheit.
Grease a large baking sheet with oil or line the sheet with non stick silicon mat or aluminium foil, arrange the potatoes in a single layer.
Smash the potatoes gently using a potato smasher or a good quality spatula.
Top all the smashed potatoes with garlic, enough salt and ground black pepper powder and other spices you may like.
Bake in the preheated oven for about 30 minutes or until the potatoes are roasted.
In case you want to top the potatoes with cheese (if not vegayou can add the grated cheese now and bake for another 5 more minutes.
Once the potatoes are transferred to a serving dish, top with dried oregano leaves(optionaand guacamole, or any sauce or sour cream if you wish, serve hot for lunch or dinner, enjoy!