Bun & Sum
Takeaway-only halal smash-burger and pastrami joint in a converted container at Bow (beef pastrami, no pork); tasty to fans but a lightning rod for portion-size and price complaints.
Why it's listed: Smash-burger/pastrami spot, Bow, small local chain; beef pastrami - halal-leaning
Profile last updated 14 July 2026.
The business claims it
Structured facts from the listing and website.
- Cuisine style
- American smash burgers and pastrami (halal), plus loaded fries and desserts“specialising in pastrami & classic smash burgers, plus finger foods & desserts”
— editorialSummary - Halal status
- fully halal“specialising in pastrami & classic smash burgers (halal — beef pastrami, no pork)”
— editorialSummary - Setting & venue context
- Operates from a converted 20ft shipping container in the Bow Triangle Business Centre; takeaway only“it's literally a little burger bar in a converted 20ft container”
— reviews - Service modes offered
- takeaway · delivery“Didn't realise that this branch was takeaway ONLY ... 50% off selected items for collection”
— reviews - Alcohol policy
- alcohol free“halal smash-burger takeaway; no alcohol referenced”
— types - Price band
- midrange“Too small and too expensive ... I expected more for £12 ... £5 for a glass bottle of coke”
— reviews
Customers reveal it
Recurring signal mined from real reviews — with receipts.
- Occasions customers use it for
- takeaway · casual eats“grabbing a deal for takeaway”
— reviews - Dishes customers name repeatedly
- smash burgers · pastrami · big rib burger · animal fries“The big rib burger was the best thing ... animal fries”
— reviews - Recurring caveats in reviews
- small portions for the price · overpriced (drinks especially) · takeaway-only, no dine-in · inconsistent quality“Too small and too expensive ... £5 for a glass bottle of coke ... takeaway ONLY”
— reviews - Value for money as customers see it
- Divisive — fans say quality justifies it, many others feel it is overpriced for the portion“the quality does justify it to an extent ... rip off merchants”
— reviews
Only the owner knows it
Questions we hold for the kitchen itself. Unanswered until they answer.
We're holding 9 questions for the owner — families & kids, best occasions & the vibe, vegan, coeliac & allergy options, why choose you, groups, private hire & catering, booking or walk-in?, good to know before you visit, must-order dishes, made in-house & sourcing — and will publish the answers here once confirmed.