It’s always a good time for a hearty, flavorful steak sandwich!

Tender and juicy strips of steak are sandwiched between soft garlic butter toasted ciabatta buns and topped with cooked mushrooms and golden onions.

I am so excited to have partnered with Reynolds Wrap® to bring you the perfect grilled steak sandwich recipe.

Grilled Steak Sandwiches!

  • Everything in this recipe is cooked on the grill! Easy prep, cooking, and cleanup! This steak sandwich recipe makes an impressive looking and delicious bistro-style sandwich that’s a welcome departure from ordinary burgers!Build a BYO bar and set out a variety of condiments and toppings! And for anyone who’s watching their calories, simply omit the bread and make a fancy steak salad with the same ingredients.

What Goes on a Steak Sandwich? 

Steak – Choose beef strip loins or rib eyes with some marbling to them. This keeps the meat juicy and adds flavor! Skirt steak also makes great steak sandwiches. Season generously with steak seasoning or salt and black pepper.

Grill Prep Tip! Use Reynolds Wrap® aluminum foil to clean the grill before cooking.

Simply roll some foil into a ball and use barbecue tongs to rub it along the grates. This is an easy way to remove debris without worrying about bristles from a traditional barbecue brush!

Bread – Pick sturdy varieties of bread like ciabatta bread, thick slices of garlic bread, pretzel buns, or hoagie rolls. They’ll soak up the juices but still hold everything together!

Veggies – Cooked in foil packets, the onions and mushrooms practically cook themselves! White or red onions will work in this recipe. Choose either white, brown or portobello mushrooms (or any combo of them).

Toppings – Robust steak sandwiches call for robust toppings! Top as you’d like with arugula, Dijon mustard, or a mayonnaise based horseradish sauce, a thick tomato slice, or a few jalapenos for a perfect steak sandwich!

Variations – Slice steak across the grain and build each sandwich with desired condiments and toppings. For a Philly-style sandwich, slice the meat uber-thin, pile on the veggies and Provolone, and serve with store-bought au jus.

How to Make a Steak Sandwich

These steaks are made on the grill. Oven steaks also work well to make steak sandwiches.

  • Prep: Assemble mushroom & onion packets in foil; grill until the onions are tender per the recipe below. We find Reynolds Wrap heavy duty foil to hold up the best without tearing for grilled foil packets

  • Grill: Grill steaks and veggie foil packets to desired doneness (times and temps below). Grill the garlic buttered bread while the steak rests.Assemble Sandwiches: Once rested, slice the steak against the grain and assemble the sandwich.

Our Fave Summer Sandwiches

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The standard temp is 145°F, below is a guide for levels of doneness. Remove the steaks from the grill a few degrees before they’re done as the temperature will continue to rise as they rest.

  • Rare: 125°FMedium-Rare: 135°FMedium: 145°FMedium Well: 155°FWell: 160°F

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Grilled Steak Sandwiches

Nutrition Information

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

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