"To roast the potatoes" means to cook potatoes in an oven or over an open flame until they become crispy and golden-brown on the outside. Full definition
While that was cooking I also roasted a whole chicken with roasted potatoes for dinner plus some for leftovers (I always love having extra). (fitbeauties.ca)
I made roast potatoes for the first time ever this week and used this recipe. (bbcgoodfood.com)
For dinner, I like to make a warm bowl of roasted potatoes with veggies and avocado, or a big bowl of soup. (hbfit.com)