Onam & Kerala Festival Food: What Sadhya Means to Herb

Onam is Kerala's biggest festival - a harvest celebration marked with flower arrangements, boat races in some parts of the state, and, most relevantly here, an elaborate feast called Sadhya. It's worth understanding, because it sits directly behind a lot of what makes Herb's everyday cooking what it is.

What Onam actually celebrates

Onam marks the annual harvest in Kerala and is celebrated across the state regardless of religion - it's a cultural festival as much as a religious one. Homes are decorated with intricate flower arrangements called pookalam, and the centrepiece of the day is a shared vegetarian feast.

What a Sadhya actually is

A Sadhya is a large, entirely vegetarian meal traditionally served on a banana leaf, made up of a long list of small dishes - often twenty or more - served together rather than in courses. It's the same underlying idea as a thali, scaled up considerably: rice as the base, with sambar, various vegetable curries, pickles, papadum and sweets surrounding it.

Herb's Onam Sadhya at Leicester

Herb has marked Onam at the Leicester restaurant with a full banana-leaf Sadhya spread, featuring sambar, rasam, avial, thoran, olan, pachadi, a rotating selection of curries, crisp banana chips and pappadams, closing with a warm payasam. What stood out wasn't just the number of dishes, but how each one held its own distinct flavour rather than blending into a single "curry night" experience - every dish plays a specific role on the leaf, and the balance across the whole spread genuinely matters.

The full banana-leaf Sadhya is a festival-specific event rather than a daily menu item, so advance booking is recommended for any future Onam sitting given the scale of preparation involved.

Dishes Now on the Regular Menu

Several dishes from the Sadhya have found a permanent home on the everyday menu since - avial, thoran and a few of the festival curries are now available year-round, which gives people searching for Kerala restaurants near me a reason to visit outside of festival season too. Kerala food doesn't get the same spotlight that North Indian cuisine does on most UK restaurant menus, so having these dishes available every day matters to a lot of regular diners. Check the current lineup on the Leicester restaurant page before you visit.

The connection to Herb's everyday menu

Beyond those specific dishes, the tradition behind Sadhya is the one the kitchen draws on every day more broadly. Pothichoru - the banana-leaf wrapped rice meal served at Herb - reflects the same serving style, just scaled for one person rather than a feast. The Kerala thali follows the same logic too: several dishes, one plate, meant to be eaten together.

Why this matters beyond the festival itself

Onam is a useful lens for understanding Kerala food generally - it's not built around a single showpiece dish the way some cuisines are, but around variety and balance across many smaller dishes served at once. That's the same principle behind Herb's thali, and arguably behind Kerala vegetarian cooking as a whole.

Try it for yourself

Our guide to what a Kerala thali actually is is the closest everyday equivalent to a Sadhya-style meal, and a good way to experience the same idea on a normal visit to either branch.