Mastro's Steakhouse
Chicago, IL · Steakhouse
Dedicated Wagyu house
Tier 1 · Certified / Registry-Verified What the tiers mean
Wagyu from $175 on the menu we read
On the official Kobe Beef registry as No. 1783. See the U.S. Kobe list
Why it's listed
River North steakhouse at 520 N Dearborn with a dedicated Wagyu block on its current location menu: A5 Kobe Beef described as 100% Tajima Cattle from Hyogo Prefecture (New York 4oz $240 / 6oz $360), Japanese A5 from Miyazaki Prefecture (New York 8oz $175 / 10oz $200), Australian Westholme tomahawk chops, and WinterFrost American Wagyu. Open nightly from 4pm.
Wagyu on the menu
- Japanese
- Brand / Prefecture
- Kobe (Tajima, Hyogo Prefecture)
- Grade
- A5
- Producer
- Not listed
- Japanese
- Brand / Prefecture
- Miyazaki
- Grade
- A5
- Producer
- Not listed
- Australian
- Brand / Prefecture
- Westholme
- Grade
- Not listed
- Producer
- Westholme
- American
- Brand / Prefecture
- WinterFrost
- Grade
- Not listed
- Producer
- WinterFrost
| Origin | Brand / Prefecture | Grade | Producer |
|---|---|---|---|
| Japanese | Kobe (Tajima, Hyogo Prefecture) | A5 | Not listed |
| Japanese | Miyazaki | A5 | Not listed |
| Australian | Westholme | Not listed | Westholme |
| American | WinterFrost | Not listed | WinterFrost |
Cuts named on the Wagyu menu
Read from this venue’s quoted evidence, so a listed cut may not be on tonight. What these cuts are
Sourced from
Buy it online
Evidence on file
“A5 KOBE BEEF / 100% Tajima Cattle - Hyogo Prefecture / NEW YORK 4OZ $240 / NEW YORK 6OZ $360”
mastrosrestaurants.com “JAPANESE A5 WAGYU / Miyazaki Prefecture / NEW YORK 8OZ $175 / NEW YORK 10OZ $200”
mastrosrestaurants.com “Sibling location page renders a DIFFERENT steak list (Petite Filet 6oz, Bone-In Filet 14oz, Bone-In Ribeye 22oz) with zero Wagyu/Kobe/Prefecture matches”
mastrosrestaurants.com
Quoted from the sources checked when this listing was verified.
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Common questions
- Does Mastro's Steakhouse serve real Wagyu?
- Yes, and it says where the beef comes from. Mastro's Steakhouse in Chicago, IL publishes enough detail on its own materials to identify the Wagyu it sells, which is the standard this directory calls verified, last checked on July 20, 2026. That means a named Japanese brand or prefecture with its grade, an American breed status with a named producer, or an Australian producer with a marbling score.
- What kind of Wagyu does Mastro's Steakhouse serve?
- Its menu discloses Kobe (Tajima, Hyogo Prefecture) A5, Miyazaki A5, Westholme and WinterFrost. Each of those is taken from the venue's own current materials rather than from a review or a listing site, and the evidence behind it is quoted further down this page.
- Is the Wagyu at Mastro's Steakhouse Kobe beef?
- Yes, on both counts that matter. This venue appears on the official Kobe Beef Marketing and Distribution Promotion Association registry, and Kobe was on its verified menu when last checked on July 20, 2026. Both are required here: a registry listing alone is permission to buy Kobe, not proof that any is being served.
- How was Mastro's Steakhouse verified?
- By reading the venue's own current material, its menu, its site or its ordering system, and quoting the line that names the beef. Reviews, aggregator copies and press mentions are not accepted as the source, because they go stale silently. Verification is assisted by AI and every claim is stored with the page it came from, last confirmed on July 20, 2026.
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