Mastro's Steakhouse Washington DC
Washington, DC · Steakhouse
Dedicated Wagyu house
Tier 2 · Provenance-Transparent What the tiers mean
Wagyu from $29 on the menu we read · up to $215
This is not a halal restaurant. It prints a supplier brand carrying the word halal on one American Wagyu cut, which describes that product line and not the kitchen. The restaurant itself makes no halal claim, no certifier is named, and the kitchen also handles pork and alcohol. If you need halal, treat this as a sourcing detail rather than a place to eat.
How to check a halal claim →Why it's listed
A downtown steakhouse two blocks from Metro Center whose beef list is split by country of origin, with the Wagyu named down to the prefecture and the producer. The Japanese section is Miyazaki A5 sold as an 8oz or 10oz New York; the Australian section is Westholme, offered as a 32oz or 40oz tomahawk chop meant for the table; the American section is a WinterFrost filet and boneless ribeye. Wagyu also runs through the openers as a carpaccio, a sushi roll and meatballs with melted burrata, and the kitchen fries its potatoes in Wagyu beef tallow.
Authenticity flags
- The Wagyu is priced well above the rest of the steak list, from $95 for the American filet to $275 for the 40oz Australian tomahawk.
Wagyu on the menu
- Japanese
- Brand / Prefecture
- Miyazaki
- Grade
- A5
- Producer
- Not listed
- Australian
- Brand / Prefecture
- Westholme
- Grade
- Not listed
- Producer
- Westholme (Cross Cattle)
- American
- Brand / Prefecture
- WinterFrost
- Grade
- Not listed
- Producer
- WinterFrost
| Origin | Brand / Prefecture | Grade | Producer |
|---|---|---|---|
| Japanese | Miyazaki | A5 | Not listed |
| Australian | Westholme | Not listed | Westholme (Cross Cattle) |
| 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
“The beef list, read 2026-08-09, printed in three origin-headed blocks: "American Wagyu WinterFrost Halal Filet 7oz $95 Boneless Ribeye 16oz $115 Australian Wagyu Westholme Cross Cattle Tomahawk Chop 32oz $215 Tomahawk Chop 40oz $275 Japanese A5 Wagyu Miyazaki Prefecture New York...”
mastrosrestaurants.com “Openers on the same menu: "A5 Wagyu Beef Carpaccio $47", "Wagyu Meatballs with Melted Burrata Cheese $29", and under Sushi Selections "A5 Wagyu Beef Roll $37". The sides header reads "Proudly frying with Wagyu Beef Tallow".”
mastrosrestaurants.com “Location identity from the page's own JSON-LD: streetAddress "600 13th St NW", postalCode "20005", Washington DC. This is the DC unit's own page, not a chain-wide menu.”
mastrosrestaurants.com
Quoted from the sources checked when this listing was verified.
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Common questions
- Does Mastro's Steakhouse Washington DC serve real Wagyu?
- Yes, and it says where the beef comes from. Mastro's Steakhouse Washington DC in Washington, DC publishes enough detail on its own materials to identify the Wagyu it sells, which is the standard this directory calls verified, last checked on August 9, 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 Washington DC serve?
- Its menu discloses 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.
- How was Mastro's Steakhouse Washington DC 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 August 9, 2026.
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