Noun
luncheonette (plural luncheonettes)
A small diner or restaurant that serves lunch.
Synonyms: see Thesaurus:restaurant
Coordinate term: bruncheonette
At his new restaurant, Harry & Ida’s Luncheonette, he serves dishes such as broccoli stems in fermented black beans and sauces made of carrot peels. Source: Internet
Continue Route 340 to the White Horse Luncheonette in White Horse; my sisters and cousins are there waving as I go by. Source: Internet