Thesaurus:restaurant

• automat
• beanery
• buffet
• cafeteria
• caff (UK)
• canteen
• cookhouse
• cookshack
• diner
• dining hall
• eatery (Canada, US, informal)
• hashery
• hotel (South Asia)
• luncheonette
• lunchroom
• noshery (informal)
• restaurant

• carryout (Scotland, US)
• fast food restaurant
• takeaway (chiefly Britain, Australia and New Zealand)
• takeout (chiefly North America)

• dining car
• drive-in (US)
• gastropub (British)
• hash house (US, slang)
• hole-in-the-wall (idiomatic)

By cuisine

• bistro
• curry house
• chophouse
• greasy spoon
• grill
• grillroom
• pizza parlor
• pizza shop
• pizza store
• pizzeria
• steakhouse
• trattoria

By clientele or location

• chow hall (slang)
• mess hall (US)
• messroom
• refectory

• building    [⇒ thesaurus]
• business
• eating establishment
• establishment
• enterprise    [⇒ thesaurus]

• dining room
• kitchen
• lunch counter
•   —
• chef
• cook    [⇒ thesaurus]
• cordon bleu
• dishwasher
• hash slinger
• maître d'
• restauranteur
• server
• sommelier
• sous-chef
• waiter
• waitress
• waitstaff
•   —
• chair
• fork
• glass
• knife
• menu
• house wine
• plate
• spoon
• table
• wine list

• food court

• all-you-can-eat
• chuck wagon (US)
• could I see the menu, please
• front of house
• lady who lunches
• the bill, please