Cooked?
Johnny Mac's Prep & Warewash
- gradeGrade A
- inspection score0 pts
- critical violations0
- last inspectedMay 19, 2026
- address842 S Boulder Hwy, Henderson 89015
Is Johnny Mac's Prep & Warewash clean?
Johnny Mac's Prep & Warewash is currently Grade A from Southern Nevada Health District (SNHD), from an inspection on May 19, 2026. No critical violations were recorded at that visit. On Cooked's ladder that reads clean 😇.
What did inspectors find at Johnny Mac's Prep & Warewash?
Nothing was written up at the most recent inspection on May 19, 2026. A clean sheet like this is the best possible result — no violations of any severity were recorded.
When was Johnny Mac's Prep & Warewash last inspected?
Johnny Mac's Prep & Warewash has 6 inspections on record going back to October 4, 2022, averaging 7 points.
| date | result | score |
|---|---|---|
| May 19, 2026 | Grade A | 0 pts |
| May 14, 2026 | Grade B | 17 pts |
| February 25, 2025 | Grade A | 9 pts |
| April 24, 2024 | Grade A | 9 pts |
| August 16, 2023 | Grade A | 6 pts |
| October 4, 2022 | Grade A | 3 pts |
Johnny Mac's Prep & Warewash vs Henderson
Henderson runs 98% clean across 2,529 tracked restaurants — 2,333 clean, 32 mid, 6 cooked.
Against the 2,529 spots Cooked tracks in Henderson, this one comes out cleaner than 66% of them.
Other spots in Henderson
How Las Vegas grades restaurants
The Southern Nevada Health District grades on demerits, and here more is worse: roughly 0–10 demerits earns an A, 11–20 a B, and 21 or more a C. Serious problems can skip the ladder entirely — an imminent health hazard gets the permit suspended and the kitchen shut on the spot, which shows up as a closure rather than a letter. SNHD covers all of Clark County, so Henderson, North Las Vegas and the unincorporated Strip all run the same scheme. Cooked reads A as clean, B as mid, C or a closure as cooked.
Source: Southern Nevada Health District (SNHD) via SNHD Restaurant Inspections. Cooked refreshes this data daily — this listing's most recent inspection is dated May 19, 2026. Inspection results describe one moment in a kitchen's life, not a permanent verdict.