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Address
2931 Highway K, O'Fallon, MO 63368
Website
Services
Takeout · Reservations · Dogs welcome · Kid friendly
What we've seen
Public reviews and restaurant replies · not verified
Shack Breakfast & Lunch - O'Fallon carries a steady paper trail of diner reviews. The setting gets its own mentions: a fun atmosphere, a lively atmosphere and a laid-back room. Guests flag the practicalities too: a line people say pays off, a broad menu and a brunch crowd. Diners have confirmed gluten free versions of the pancakes.
Diners report a separate gluten-free menu.4 diners
Diners mention gluten-free pancakes.
pancakes2
Gluten-free comes up in 4 observed reviews.
Latest gluten-free signal: 2026-08
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