Should I ask for a raise as a commis chef?

Hey everyone, I’ve been working as a commis at a smaller branch of a 4-star hotel for almost a year now. I started off part-time while studying but recently switched to full-time.

It’s a small kitchen — just me, the head chef, and a breakfast chef. I used to do shifts alongside the head chef, but after a few months, he started scheduling me for independent shifts. On average, we serve about 10–12 tables a day, and there are plenty of times I’m working without a KP. Which means I cook and clean all by myself including potwash and trash duty as well.

Right now, I’m earning the UK minimum wage — the same as the KP and even the bar staff. Given the extra responsibility and the fact that I’m often running things solo, I feel like I should be making a bit more.

I’d really appreciate some advice — do you think it’s fair to ask for a raise? And if so, what’s the best way to go about it without coming off the wrong way?

Thanks in advance!