Bui's

Obligatory for Penn undergrads and alumni trying to relive the glory days. My go to is the Mrs Buis with chicken and egg, or the sausage egg and cheese (saltpepperketchup). Call in ahead if you don't want to wait.

Today, I found myself massively craving an egg, cheese, tomatoes on a soft, crispy hoagie roll. I could taste the crunch of the bread, the gooeyness of the cheese and eggs, and the sweetness of the tomatoes. I was struggling mightily to try and remember where I had this amazing concoction so I could order it for lunch. I sat at my desk in San Francisco, scrolling through Yelp and looking at all the sandwich and banh mi places... ...only to realize that I was thinking of Bui's Lunch Truck in Philly!!!It's been nine years since I've lived in Philadelphia and just as long since I've had a Bui's Special #3, but I miss it so much. I've tried to stop by the few times I'm in town, but never seem to be in Philly during their opening hours. The one time in 2021 (May 9th) I was in town between 7am and 2pm, Bui's was closed that day. Next year is my ten-year school reunion and I'm definitely carving out time to stop by. Can't wait!

Based off of the reviews here I was expecting something more substantial in terms of portion size. The sandwiches here are pretty large but it could do with a little more meat. I've ordered the hangover as well as a scrapple egg and cheese. The food itself is pretty delicious, no complaints about that.They're friendly and they're fast in getting your orders out to you. I've ordered at the truck as well as phoned my order in. I recommend doing the latter if you're in a rush or if your office happens be a bit of a walk from the truck.

For over 3 years, I've been a customer at this little foodtruck near the university's campus. As a family run business, they make their customers family as well-- getting regular customers, knowing orders, and hitting it out of the park every time. I haven't ordered in a while, so today I figured I'd see if I could get my favorite-- bacon, sausage, egg and cheese with salt pepper and bui's sauce! She stayed open an extra 5 minutes when I was a bit late and she was closing up, and had my sandwich waiting for me with a smile! The bread is soft and perfect with the breakfast meats and buis sauce, which gives it an almost spicy flavor with a a great texture that isnt dry at all! Ask and you shall receive- if you want extra bui's sauce to make it saucier, do it! If you want more meat, order extra. Customize it the way you want and you won't be disappointed. I've also tried the chicken salad, tuna salad, and cheesesteaks, and they are all so full of flavor and packed with toppings. It's worth the extra few bucks to get the bigger, real meat, real toppings sandwiches.

Best hidden gems. I order number 9 cheesesteaks. It so tasty and delicious. The Bui sauce make all the difference. Give this place a try and you won't be disappointed. Don't let the hole in the wall look fool you.

Pretty solid breakfast / lunch food truck. Lady serving was courteous and recommended I get the hangover. It was 11am and I was pretty sober but what the heck. She runs an efficient shop as I got the goods in less than 2 mins. Couldn't even fumble my cash (ONLY FORM OF CURRENCY THEY ACCEPT) quick enough to pay before she handed me my goodness in tinfoil wrap-The Hangover Breakfast sandwich ($6 cash money): would highly recommend you get it with the bui sauce, their homemade version of spicy mayo. White bread sub with egg, bacon, ham and sausage inside. Pretty standard breakfast sub but the sauce gives it that zing Overall, good food truck. Would come back again. Only improvement areas for me would be offering whole wheat sub and accepting credit cards

This cart has been here for ages, and it's a shame that I hadn't checked it out until now! Super cheap breakfast and lunch food with a smile. Make sure you try the Bui sauce, it's some type of yummy spicy mayo. Not sure what kind of bread they use, but the other reviewer's comment about it being very fluffy and easy to fill up on, is spot on. Not a fan of the bread because there could be more meat on the sandwich. Can't really complain though cause it's so cheap and delicious!

Bui's will always have my heart. She's the most reliable food truck on campus- whether you're getting a sandwich as simple as an egg and cheese or as complicated as a hangover special with vegetables, always. get. bui's. sauce. You can also text ahead if you're running late. But I'll always be back for $5 #3 Mix Veggie with everything :)

Overall great food truck. The owner is a nice lady who always wants to make you happy as can be!She has a lot of specials ranging from cheesesteaks (chicken available as well), grilled chicken sandwiches, egg sandwiches, the list goes on.One of the best things to do is to add the famous Bui sauce to whatever you get as it adds a lot of flavor to the meal.I had the egg and chicken sandwich with onions and Bui sauce and it was delicious. Very worth the 5 or so dollars I paid.My only complaint is that I wish it were open longer!

Sandwich had little egg and bacon. It was all bread. Does take Venmo which is positive. I would not revisit.