Having an eating place in a physical casino can be another value added to the casino and attract more gamblers. 
And even if you don't believe it, this was one of the biggest Attractions that when I met the casino was what motivated me the most even when I was in college, as is normal, when we are in college and we do many activities apart from learning, well I took full advantage of it, practicing sports , going to parties, going to drink beer in many places, when I went to the Casino I could see that I was entering an environment that felt much more elegant, where not just Anyone could enter, so one of the things I liked the most was eating chicken lollipops with beer, wow and playing that is the best , if you are in the full roulette, and you bet while eating and winning, that is a phenomenal sensation.
Also I will like to mention that since the new generation only knows about the online gambling and they hardly visit any physical casinos so when they visit those places they find them attractive with and full of fun.
Think that you are playing online gambling for a long long time and never visited a physical casinos and when you visited for the first time it will be big surprise for you. Only the old gambler know what it look likes to be in a physical casino and then gamble.