Is a cheaper room workable if the live-in owner allows only microwave meals?

At the room viewing, the owner pointed to a microwave and said, "That's your cooking area. I don't want frying smells in the house." The advert had said kitchen access, and I had imagined using the hob a few evenings a week.

The room is £650 a month, including the agreed bills. The other room I've shortlisted is £760, with a shared kitchen where ordinary cooking is part of the proposed arrangement. Both owners live in their homes. I haven't signed either agreement.

The cheaper room is quieter and nearer work. I could manage microwave meals sometimes, but I enjoy cooking and use it to keep my food budget predictable. When I asked whether we could agree a couple of evenings for hob use, the owner said he had tried exceptions before and regretted them. He wasn't rude; he seemed clear about how he wanted his home to function.

Should I ask once more about a precise arrangement, or accept that the room may be a poor fit? The £110 saving matters, but I don't want to move in expecting a rule he has explicitly stated to soften once he gets to know me.