Jul 14 2026
Restaurants›Rock Creek Tap and Grill›Steak Sandwich Recipe

Steak Sandwich Recipe

Inspired by Rock Creek Tap and Grill
Time1h
Serves2

Topped with onion rings + sautéed mushrooms. Served with two sides.

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Ingredients

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Steak & Marinade

Onion Rings (crispy)

Sautéed Mushrooms

Assembly & Bread

Sides (suggested; pick two)

Method

Steak & Marinade

  1. 1

    Marinate steak

    Pat steak dry. In a bowl combine 2 tbs olive oil, soy sauce, Worcestershire, minced garlic, black pepper and kosher salt. Rub marinade all over steak, cover and refrigerate for 20–30 minutes (or up to 2 hours). Bring to room temperature 20 minutes before cooking.

  2. 2

    Cook steak

    Heat a heavy skillet or grill over high heat until smoking hot. Add 1 tsp olive oil to pan. Sear the steak 3–4 minutes per side for medium-rare (internal temp 130–135°F / 54–57°C), longer for desired doneness. Remove to a cutting board and rest 8–10 minutes, then thinly slice against the grain.

Onion Rings (crispy)

  1. 3

    Prepare onions

    Peel onion and slice into 1/2-inch rings. Separate into individual rings and pat dry with paper towels.

  2. 4

    Make batter

    In a bowl whisk together flour, cornstarch, baking powder, salt and pepper. Gradually whisk in cold sparkling water or beer until a smooth batter forms (thicker than pancake batter but still coat-able). Keep batter cold.

  3. 5

    Fry onion rings

    Heat vegetable oil in a heavy pot to 360°F (182°C) or medium-high until shimmering. Working in batches, dip onion rings in batter, allow excess to drip off, then fry 2–3 minutes until golden and crisp. Remove to a rack or paper towel-lined tray and season immediately with a pinch of salt.

Sautéed Mushrooms

  1. 6

    Cook mushrooms

    Heat a large skillet over medium-high heat. Add butter and 1 tsp olive oil. When butter foams, add minced shallot and sauté 30 seconds. Add sliced mushrooms in a single layer and cook undisturbed 3–4 minutes until browned. Stir, add garlic and thyme, cook 30–60 seconds until fragrant. Season with salt and pepper and remove from heat.

Assembly & Bread

  1. 7

    Toast bread

    Split rolls or baguette and lightly toast cut sides under a broiler or in a pan until golden.

  2. 8

    Sauce

    Mix mayonnaise and Dijon mustard. Spread roughly 2 tbs mayo mixture on each bottom roll and a light smear on the top.

  3. 9

    Assemble sandwiches

    Place a layer of lettuce and a tomato slice on each bottom roll. Add slices of rested steak (divide evenly between two rolls), then top with sautéed mushrooms and 3–4 onion rings per sandwich. Add cheese slice if using, then crown with top roll.

Sides (finish & serve)

  1. 10

    Prepare sides

    Cook or heat your chosen two sides according to package or recipe (e.g., bake fries until crispy, toss a side salad with dressing, or portion coleslaw).

  2. 11

    Serve

    Place each sandwich on a plate with two chosen sides. Optionally serve extra onion rings and steak juices or a steak sauce on the side. Serve immediately.

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