You absolutely can. You just need a roasting pan compatible with induction. An induction cooktop beats any other type in my experience. 1) I’m not breathing in harmful chemicals. 2) I’m not waiting around for the pots to get warm. 3) I feel like induction cooks faster than gas but I don’t have evidence. 4) While it’s more expensive to get into, it’s a lot healthier for you in terms of air quality and cooking quality.
That's what ovens are for though?
sure you can. why should gas be better for roasting?