lunchroom

noun

1. A room designated as a place to eat lunch.

   “Company policy was to eat snacks only in the lunchroom.”

   “Kraft Heinz said the new products will be available nationwide to all school administrators to procure and offer to students either for purchase in the lunchroom – though the company did not disclose the cost to schools – or for free through the National School Lunch Program (NSLP).”

   “Lunchables, made by Kraft Heinz, took its packaged ready-to-eat kids meals directly into K-12 school lunchrooms nationwide through the National School Lunch Program (NSLP) for the first time last year.”

2. A diner or small restaurant that serves lunch.

   “I don't know how they stay in business serving only lunch, but the lunchroom on the corner is cheap and fast so I like it.”