The midday buffet is a fixture of Indian restaurants across the United States. Its operational demands select strongly for certain dishes, and that selection has shaped what many diners think the cuisine is.
The format solves a specific problem
Lunch service is short, price-sensitive and heavily weighted towards people who need to eat and leave quickly. Cooking to order fits none of those constraints well.
A buffet moves all the cooking before service, so the kitchen runs a small brigade and turns tables fast. Guests self-serve and pay a fixed price.
For the restaurant, it converts an unpredictable lunch trade into a fixed cost with a fixed revenue per head.
Holding heat decides the menu
A dish on a buffet sits over gentle heat for an hour or more. Anything that continues cooking in that period arrives at the table in worse condition than it left the pan.
Sauced dishes survive best, because the gravy insulates the solids and replaces the moisture they lose. Dry preparations dry further and crisp textures go soft.
This is why buffet lines are dominated by gravies and why fried items appear in small quantities and are replaced often.
Which ingredients tolerate the trays
Chickpeas, lentils, potatoes and paneer all hold their shape for long periods without breaking down. Leafy dishes and thick purées also sit well because their texture is already uniform.
Delicate fish, fresh greens and anything relying on a just-cooked crunch are poor candidates and rarely appear.
Cream-thickened gravies hold particularly well, which is part of why they became so heavily represented in the American impression of the cuisine.
Why the spicing is pitched low
A single tray has to satisfy a mixed room with no chance to adjust it. Kitchens therefore set heat conservatively and put chilli condiments on the side.
Salt is handled the same way, kept slightly below where a to-order dish would sit because the food will concentrate as it holds and evaporates.
Diners who judge a restaurant by its buffet often find the evening menu noticeably more assertive, cooked as it is for one plate at a time.
What the format did to expectations
For a great many American diners, the buffet was the first extended encounter with Indian food, and it set an idea of the cuisine as a spread of mild, similar-looking gravies.
Dishes that cannot hold in a tray were simply absent from that first impression, including much of what a regional kitchen would consider central.
Restaurants opening now often skip the buffet entirely, which changes both what they can cook and what a first-time guest walks away thinking the food is.