?Nicole Richie sunglasses heels jeans leather jacket white leather harlow subway

How'd the almost-4-year-old Harlow learn to crunk?!

She and mom Nicole Richie went on a mommy-daughter lunch date Thursday and you're not going to believe where they went ...

We spotted the pair grabbing a bite to eat in Studio City on Wednesday, and the lovely ladies settled on Subway to satisfy their food cravings. See, those green smoothies aren't the only thing Nicole eats!

It was recently announced that the 30-year-old fashion designer/reformed party princess is expanding her fashion empire with a QVC clothing collection, and we'll get our first peek at the line in February. Nicole will also appear as a mentor on the new reality competition show Fashion Star, and she chatted about her style evolution with WWD. "It's not that deep for me, it's whatever I feel comfortable in at that time," she says. "I really look at fashion as a form of self-expression, so just like how your moods change, my fashion choices change all the time."