Shroom
A mushroom Swiss done a little more carefully than most: crimini mushrooms, Swiss, caramelised onions and roasted garlic aïoli on an Angus patty with lettuce and tomato. The caramelised onions add sweetness and the garlic aïoli adds depth, so it tastes richer than the usual sautéed-mushroom burger. A good choice if you want something savoury rather than spicy.
What’s inside
- Angus beef patty
- crimini mushrooms
- Swiss cheese
- caramelized onions
- roasted garlic aïoli
- lettuce
- Roma tomato
- toasted brioche bun
Make it at home
There is no copycat of the Shroom yet. Until there is, these recipes on the site come closest to it, judged by what goes into the bun.
- Shares beef, mushrooms and cheese
Portobello Mushroom Burgers - Shares beef, mushrooms and cheese
French Onion Burgers - Shares beef, mushrooms and cheese
Mushroom Swiss Smash Burgers with Truffle Sauce - Shares beef and cheese
Zachariah's Shack Burger
Variations
The Shroom, taken somewhere it was never meant to go.Similar burgers at other chains
Built around the same things as the Shroom.- The Counter · beef, mushrooms, garlic and cheeseSignatureThe Counter Burger
- Black Star Burger · beef, mushrooms, cooked onions and cheese
SignatureVIP 13 - Red Robin · beef, mushrooms, garlic and cheese
Sautéed ’Shroom - Supermac’s · beef, mushrooms, cooked onions and cheeseFestive 5oz Burger
More from Burger 21
About Burger 21
Burger 21 comes from Tampa and from a family that already knew how to franchise a restaurant. Mark and Arlene Johnston were behind The Melting Pot, the fondue chain Mark and his brother Mike had grown from a single franchise in Tallahassee into a national brand, and in November 2009 they started a burger concept under the same management company, Front Burner Brands. The first restaurant opened in Tampa in 2010 and the first franchise deals, for Orlando, followed in 2012.
A small chain: restaurants around Tampa, in northern Virginia, Georgia, Charlotte and Albuquerque, plus airport branches and a food truck.
Not affiliated with Burger 21. Trademarks belong to their owners. The photo shows my home version, not the restaurant’s product.