Jeff Bezos and Lauren Sanchez might be worth billions — but they’re just like us … ’cause sometimes, they just want some basic lo mein, and when they do — they dine in.

The Amazon founder and his fiancée — who are quite accustomed to the high life — rolled into a relatively dinky restaurant in Miami Sunday called Tropical Chinese and they sat down for a meal with another couple for dinner.

If you think they’d stand out like a sore thumb in a joint like this … well, you’re right. As you can see in these photos obtained by TMZ — Jeff and co. most certainly looked like celebs in a very normie part of town. And, in a modest establishment like this — perhaps doubly so.

The reason we know that’s true … some of the restaurant patrons — and some staff too, it seems — came over to chat it up with JB and his crew … apparently in awe he was there.

Jeff didn’t seem to mind the attention … he was seen smiling and yukking it up with the commoners — and once he and his party were finally able to sit down and munch, we’re told they appeared to be delving into the Peking duck … which goes for about $78 there.

It’s a whole two-course deal there and certainly one of their pricier offerings. Everything else is fairly affordable … a fried rice order at this place costs between $15 and $26.

Considering Jeff and Lauren are used to a certain standard of living in their day-to-day — this must’ve been a nice change of pace for them. Hey, billionaires need greasy noodles too!