Steak Melt
Last updated on July 3rd, 2026
I love steak, mushroom, onion, all of it! On a warm sandwich with some melty cheese and some delicious au jus to dip it in? Now you’re speaking my love language! This Steak Melt was unreal! It was so delicious, dripping amazing juice, every bite bursting with flavor. Oh, and the smell while it’s cooking? That beautiful garlic herb butter! This sandwich was one of my favorite things I’ve ever made! Done in just 30 minutes, this was so easy to make and SO hard to stop eating!
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Did you know?
Au jus is a French term that literally means “with juice” in reference to meat being served with its own cooking juices! But while the au jus is French, the concept of actually dipping a steak melt into it is all American! This is thanks to “the French dip sandwich,” which was invented in Los Angeles in the early 20th century!
What ingredients do I need to make this?
For the garlic herb butter:
Salted Butter
Garlic
Basil
Black Pepper
For the steak melt:
Baguette
Shaved Steak
Baby Bella Mushrooms
Muenster Cheese
Yellow Onion
Olive Oil
Salt
Black Pepper
Garlic Powder
Lawry’s
For the au jus:
Reserved Juices from the Steak
Beef Broth
Worcestershire
Black Pepper
Salt
For serving:
Parsley
What equipment do I need?
- Large Skillet
- Large Baking Sheet
- Measuring Cups and Spoons
- Tongs
- Spatula
- Slotted Spoon
- Chef Knife
- Cutting Board
- Aluminum Foil
- Whisk
- Mixing Bowls
- Small Glass Dish
How do I make it?
To prep the ingredients:
Take your butter out of the fridge to soften and in the meantime, wash the veggies and herbs.
Next, mince the garlic and parsley. Then slice the mushrooms and dice the onion.
To make the garlic herb butter:
In a medium sized bowl, mash all herb butter ingredients with a fork until combined. Set aside until ready to use.
To make the filling:
Preheat oven to 450 F, then in a large skillet, heat olive oil on medium.
Add in all other ingredients for the steak sandwich besides the baguette and cheese.
Cook for a few minutes, stirring occasionally, until the mushrooms and onions are tender and the steak is no longer pink.
Remove from heat and using a slotted spoon, carefully transfer the mixture to a mixing bowl, reserving those yummy steak juices in the skillet.
To make the steak melt:
Line a large baking sheet with foil for easy cleanup. Next, slice the baguette in half lengthwise, then place the halves on the pan.
Spread the garlic herb butter generously on both sides.
Using a tong, heap the steak filling onto the halves.
Next, evenly distribute the muenster cheese along the steak sandwich, ripping the slices in half if necessary.
Leaving the sandwich open, bake for several minutes, until cheese is golden and baguette appears crispy. While that’s cooking, let’s get the au jus going.
To make the au jus:
Place your skillet with reserved meat juices back on medium heat, then add in all other au jus ingredients. Bring to a simmer, reduce heat to medium low, then cook for a few minutes, whisking occasionally.
Remove from heat and scoop into a ramekin or a small glass dish.
To serve:
Put the sandwich halves together carefully, using spatulas on either side if needed.
Slice into halves or quarters, if desired.
Top with fresh parsley and serve steak melt hot, dipping into that amazing au jus. Enjoy!
Tips:
- You can use any herb you want for the butter! If you don’t have basil, this would be tasty with some parsley and thyme, even dill. You could also sauté some bell peppers for a cheesesteak situation!
- If you don’t have shaved beef steak, you can always thinly slice some sirloin or something similar. Or consider substituting with Steak-umm!
- Instead of baby bella, you could always use white or cremini mushrooms.
- The leftovers will keep for 1-2 days if stored in an airtight container in the refrigerator. After that, the bread will likely have absorbed too much juice and may become soggy.
Did you love this Steak Melt? Check out some of my similar recipes!
Steak Melt
Equipment
Ingredients
For the garlic herb butter:
- 4 Garlic Cloves minced
- ½ cup Salted Butter softened
- 2 tbsp Basil minced
- ¼ tsp Black Pepper
For the steak melt:
- 2 tbsp Olive Oil
- 1 lb. Shaved Beef Steak or steak-umm
- 8 oz Baby Bella Mushrooms sliced
- 1 Yellow Onion diced
- 1 tsp Salt
- 1 tsp Black Pepper
- ½ tsp Garlic Powder
- ¼ tsp Lawry's Seasoned Salt
- 1 – 13 oz Baguette sliced in half lengthwise
- 5 slices Deli Muenster Cheese ripped in half
For the au jus:
- Reserved Cooking Juices from Steak
- 1 cup Beef Broth
- 1 tbsp Worcestershire
- ¼ tsp Black Pepper
- ¼ tsp Salt
For serving:
- Parsley minced
Instructions
To make the garlic herb butter:
- In a medium sized bowl, mash all herb butter ingredients with a fork to combine, then set aside until ready to use.
To make the filling:
- Preheat oven to 450℉.
- In a large skillet, heat olive oil on medium heat.
- Add all other ingredients for the steak sandwich besides the baguette and cheese.
- Cook 5-7 minutes, stirring occasionally, until mushrooms and onions are tender, and the steak is no longer pink.
- Remove from heat.
- Using a slotted spoon, carefully transfer the mixture to a bowl, then set aside until ready to use, reserving those yummy steak juices in the skillet.
To make the steak melt:
- Line a large baking sheet with foil for easy cleanup and place baguette halves on it.
- Spread the garlic herb butter generously on both sides of the baguette.
- Using a tong, heap the steak filling onto the halves, then top with the provolone cheese slices, ripping them in half if needed.
- With the sandwich open, bake 8-10 minutes until cheese is golden and the baguette appears crispy. While that bakes, let's make the au jus!
To make the au jus:
- Place your skillet with reserved meat juices back on medium heat, then whisk in all other au jus ingredients.
- Bring to a simmer, reduce heat to medium low, and cook for 5 minutes, whisking occasionally.
- Remove from heat, then transfer to a small dish for dipping.
To serve:
- Put the sandwich halves together carefully, using spatulas on either side if needed.
- Slice into halves or quarters, if desired.
- Top steak melt with fresh parsley and serve hot, dipping it into that amazing au jus. Enjoy!
Nutrition
Please be aware that nutritional values are approximate and intended as a helpful guide
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This sounds great! One question and that’s about the shaved steak – do you buy it like that or do you shave your own? If you shave your own, what kind of steak do you use?
Thank you Terry! I did buy it shaved to save time! It was actually cheaper too because I didn’t even need a whole pound. I think with the mushroom and onion 1 pound would be too much. But you could probably find 12 oz or so in eye of round or top sirloin (why cut up a NY strip or ribeye, that’s crazy!) and then with a very sharp knife, slice it very thinly! For my 10 oz of pre-shaved steak it was about $6 at our local grocery store! Hope this helps 🙂
Thanks so much!
Oh my goodness, this looks and sounds amazing and so delicious! 😋 I love steak, mushroom and onion too! Thank you so much for sharing this recipe. 😊
We loved this one too! Thank you so much ❤️
What an awesome recipe and I love the overall look of it. Must try it this weekend.
Enjoy! 🙂
Oh wow, this sounds absolutely amazing! Steak, mushrooms, onions, melty cheese, and that rich au jus for dipping is the kind of comfort food that makes you want seconds before you even finish the first sandwich. I can only imagine how good that herb butter smelled while cooking. Every bite sounds packed with flavor and juicy goodness. This would definitely be hard for me to stop eating too!
My gosh – well I really hope you love it! Thank you so much!😊
I love how all these flavors come together to make this delicious steak melt! So yummy, delicious, and dripping with flavor. Thank you for the recipe and easy to follow instructions!
I’m so happy to hear this, Debbie! 🩷 thank you!
We are a big steak family and putting it on a sandwich was a hit! A great way to change up steak night. The au jus was delicious!
So happy to hear this 🩷🩷 thank you!
This looks amazing! Love the “au jus” idea so it’s like you get a lovely sauce with your steak :)
Thank you so much 🙂
This sounds amazing and your recipe is very easy to follow. I have to try it as soon as possible. Thank you for sharing your recipe!
Thank you so much!