Mastro's Steakhouse
Restaurant · Steakhouse & grillUnion Square
No dishes marked gluten free
Always confirm with staffAnswers come from the venue’s own menu or its listed ingredients; none of them means a dish is safe. Kitchens share surfaces and menus change. If you have coeliac disease or an allergy, tell staff and confirm before you order.
Good to know
Restaurant
- Wheelchair accessibleOpenStreetMap, read 28 Jul 2026. Evidence: wheelchair=yes
- Vegetarian dishes (14)venue menu, read 11 Nov 2026. Evidence: 14 vegetarian dishes marked on the menu
- Vegan dishes (10)venue menu, read 11 Nov 2026. Evidence: 10 vegan dishes marked on the menu
Not known yet: dog friendly, kid friendly, kids menu, outdoor seating, high chairs, takes bookings, byo, baby change. Ask the venue.
Facts
| Fact | Detail |
|---|---|
| Address | 399 Geary Street, Union Square, 94102 |
| Area | San Francisco |
| Kind | Restaurant · Steakhouse & grill |
| Phone | +1 415-363-9539 |
| Website | mastrosrestaurants.com |
| Menu read | 9 Nov 2026 from mastrosrestaurants.com |
| Hours |
|
| Map | Open in Google Maps |
What diners say
No diner ratings yet.
Ratings are diners’ own experience. They don’t make a dish safe; neither do we.
Where this comes from
- mastrosrestaurants.com/location/mastros-steakhouse-san-francisco/HTML · read 9 Nov 2026
- mastrosrestaurants.com/specials/HTML · read 11 Nov 2026
Allergen answers come from the menu’s labels first, then the listed ingredients, then a model’s judgement checked when unsure. How allergen status is decided.
Questions about Mastro's Steakhouse
Does Mastro's Steakhouse have gluten-free options?
No dish is marked gluten free as served, from the menu read 9 Nov 2026. Each dish shows whether the venue labelled it or it was read from the ingredients.
Is Mastro's Steakhouse coeliac friendly?
The venue notes: “Potatoes & Fresh Vegetables section states: "Proudly frying with Wagyu Beef Tallow" (applies to fried items on the dinner menu).”. Eatcrush reads each venue’s own menu and says where every answer came from. It never calls a dish safe: kitchens share fryers, boards and flour, and menus change. If you have coeliac disease or an allergy, confirm with staff before you order.
When is Mastro's Steakhouse open?
Monday: 5pm–9pm. Tuesday: 5pm–9pm. Wednesday: 5pm–9pm. Thursday: 5pm–9pm. Friday: 5pm–10pm. Saturday: 5pm–10pm. Sunday: 5pm–9pm. Hours can change on public holidays; check with the venue.