The phrase "a warm restaurant" is correct and usable in written English.
You can use it to describe a restaurant that has a cozy, inviting atmosphere or is physically warm in temperature.
Example: "After a long day of sightseeing, we found a warm restaurant where we could relax and enjoy a hearty meal."
Alternatives: "a cozy restaurant" or "a welcoming restaurant".
A clubbish and warm restaurant in the lobby of the Chatwal Hotel, the Lambs Club is a kind of Sardi's for the modern age set amid the trappings of a past one, with a gas fireplace, black paneled walls and red leather banquettes.
Now I thought about nothing but a relaxing meal in the warm restaurant that was once an hour away, and now more like two or three.
Mr. Lianides, with a group of backers, bought the Lane, renamed it, and set about creating a warm, elegant restaurant.
A little farther afield, in the Wicker Park neighborhood north of downtown, is Mas, a warm, loud restaurant with golden walls and curtains made of beaded glass.
Partly to prolong leaving a warm neighborhood restaurant, but mostly to cheer myself up, I succumbed to the waiter's hard sell on the special dessert, a "harvest" tart.
There, at No. 4 (516-676-5793), where the Tavern on the Plaza had been, an eager-to-please Scottish family has opened a warm, cozy restaurant with prices that please, food that generates vivid tastes and people who charm.
THERE'S a warm little restaurant in Lawrenceville, a place that is a mix of tables and easy chairs, sofas and plump cushions, whimsical wall hangings and window tapestries -- a place where, on a gray winter afternoon or a cold night, you want to come in, lay down your burdens and stay.
Olwyn and I left the dark, warm restaurant for the bitterly cold street.
I want to go back into the warm restaurant, but I stay with her.
His face was covered in thick, pungent makeup, which in the warm restaurant made it hard to enjoy the food.
