Here ?Perth WA? a theatre was started up, back in the 60?s, using an old dilapidated main street shop.
Being just a number of rooms, they adjoined a few rooms together, for the punters, & knocked a hole in a wall, between 2 of them to set up a stage.
The opening production, which they named after the theatre, was the ?Old Time Music Hole?. This was started by a collection of performers, led by a character called Frank Baden-Powell [No relation to Lord Robert Baden-Powell of Gillwell, who founded the Boy Scout movement].
The original season was planned for about 20 performances, it took off & ran for almost 20 years!
It had the same basic format, of a British Music Hall, by adding new songs & sketch?s, as the cast changed. This went on to become an Empire for old Frank, by adding other establishments like ?Diamond Lill?s Wild West Saloon? &"Dirty Dicks? that went on to be franchised in the Eastern States & even in your country. It came to an end when Frank fell off his perch & popped his clogs.
Originally there was nothing served to the punters, only if the brought their own Grog! It wasn?t until the Liquor Act changed. that allowed premises to sell & serve alcohol as long as food was supplied, He then was able to flog grog, because he supplied ample free bowls of peanuts & potato chrisps on the tables, side stepping the law!
When he became established, with the Music Hole, he started to serve meals at Diamond Lill?s, than at Dirty Dicks, with a medieval Banquet & plenty of ?Wassail?.
You could do something similar, using your local tradition of the western Music Hall/saloon style show, even call it The Hole in the Wall, with buxom saloon gals, a piano player & whatever!
You can even have hold town sheriff or Mayoral election, where by each table of punters, put forward a candidate, who is elected upon their performance, & the winner is included as part of the show or sketch.
Meals don?t have to be flash, in fact something as simple as, chicken in a basket, that they eat with their hands & supply Gingham bibs.
You can make the show suitable for all the family, naughty but nice, as in Panto or vaudeville!