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# Philly Chicken Sandwich at Lumpy's Diner
- URL: https://onesandwich.com/antioch-lumpy-s-diner-philly-chicken-sandwich/
- Published: 2026-10-03T05:11:42.000Z
- Updated: 2026-10-07T10:34:35.000Z
- Description: Seasoned grilled chicken, sautéed onions, bell peppers, melted swiss cheese on grilled artisan roll. Sandwich Score 54, solid. At Lumpy's Diner, Antioch.
- Author: Andrew Lekashman
- Tags: USA, California, #shop-sandwich, #auto-imported

A sandwich at [Lumpy's Diner](https://onesandwich.com/antioch-lumpy-s-diner/), a restaurant in Antioch, California.

CiabattaSwiss CheeseBell PepperOnionChickenCiabatta

**54**

Sandwich Score  
out of 100 · solid

Solid, with one move worth +20.

Uncharted, four of six roles, few layers have a partner.

**Holding the summit:** a finished composition

Balance

70

Harmony

65

Contrast

83

Structure

86

Focus

100

Composition

37

Quality

100

Envelope

100

Each bar is one pillar of the score, 0 to 100\. The tick marks what a sandwich at the summit needs; an amber bar is the one holding this sandwich back.

**grilled artisan roll**, toasted: seasoned grilled chicken; sautéed onions; bell peppers; melted swiss cheese.

## Balance

salt0.9 · 49thacid0.1 · 25thfat1.5 · 25thsweet0.4 · 45thumami1.9 · 66thheat0.1 · 53rdbitter0.1 · 45th

__Flavor axes__
| Axis   | Value | Catalog percentile |
| ------ | ----- | ------------------ |
| salt   | 0.9   | 49th               |
| acid   | 0.1   | 25th               |
| fat    | 1.5   | 25th               |
| sweet  | 0.4   | 45th               |
| umami  | 1.9   | 66th               |
| heat   | 0.1   | 53rd               |
| bitter | 0.1   | 45th               |

**70** Balance, out of 100

The seven flavor axes of the whole sandwich, each summed across its layers. The shaded ring is the catalog's middle 80%; the small number under each axis is where this sandwich falls in the catalog. A shape that sits inside the ring is in the range most sandwiches live in; a spike past it is where this one stands apart.

## What each layer brings

| Layer                                     | Role    | Flavor and texture               | Points    |
| ----------------------------------------- | ------- | -------------------------------- | --------- |
| grilled artisan rollscored as Ciabatta    | bread   | soft chewy crusty                | the frame |
| seasoned grilled chickenscored as Chicken | protein | umami 3 fat 2 juicy chewy tender | **0**     |
| sautéed onionsscored as Onion             | texture | sweet 2 crunchy juicy fresh      | **+1**    |
| bell peppersscored as Bell Pepper         | bulk    | crunchy juicy fresh              | **+1**    |
| melted swiss cheesescored as Swiss Cheese | protein | fat 3 umami 3 salt 2 soft melty  | **+7**    |

Points: what the Sandwich Score would lose if that one layer were left out, everything else the same. A negative number means the sandwich scores higher without it. Flavor runs 0 to 5 on each axis.

## Pairings

- **Onion + Bell Pepper**: peppers and onions, the griddle pair

[All the sandwiches at Lumpy's Diner](https://onesandwich.com/antioch-lumpy-s-diner/) · [The menu this was read from](https://lumpysdiner.com/menu?ref=onesandwich.com) · [Build your own in the Sandwich Builder](https://onesandwich.com/builder/)

Menu read 2026-09; items and prices change. The score is the site's opinion of the recipe as listed, not a review of the shop; tiers and house-made marks follow the menu's own wording.