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Open Grilled Steak Sandwich with Castello® Velvet Blue Cheese

Open Grilled Steak Sandwich with Castello® Velvet Blue Cheese

2 servings

A grilled sandwich is a classic. You can eat it for breakfast, lunch or dinner depending on what you put in it, and this grilled sandwich with steak and tangy blue cheese is perfect as a big, filling lunch or a nice dinner with a fresh salad on the side. Make yourself, your family, or your guests happy with this easy grilled steak sandwich recipe.

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Steak & Cheese

  • 4 slices Castello® Velvet blue cheese 125g
  • 1 - 2 steaks
  • 2 slices sourdough bread
  • handfuls of rocket leaves
  • radicchio leaves
  • olive oil and butter for frying
  • salt and pepper

Caramelised Onions:

  • 2 onions
  • 1 apple
  • 1 tbsp butter
  • some thyme leaves
  • salt

Chipotle Mayonnaise:

  • 2 tbsp mayonnaise
  • 1 tbsp chipotle in adobe (or another chilisauce)
  • tbsp salt to taste


1. Fry the bread in butter, until it is golden and crisp.

2. Slice the onions and heat in a pan with 1 tablespoon of butter. Cook for 8-10 minutes, until lightly golden.

3. Cut the apple into wedges and cook them with the onion for 1-2 minutes. Add a pinch of salt and some thyme.

4. Mix the mayonnaise and chipotle together, add salt to taste.

5. On a high heat, add some butter to a pan and cook the steaks. Season with salt and pepper.

6. Slice the steak just before you assemble your sandwich.

7. Spread your mayonnaise onto the bread and top with rucola and radicchio, onions, slices of Castello Velvet Blue and steak. Add more thyme if prefered. Serve straight away.

Sensory hack tip

Sensory hack tip

Toasting the bread well before adding the filling is important. This is what makes it crunchy so make sure to use enough butter and roast it all the way through on both sides.

Serving Suggestion

Serving Suggestion

After adding the Velvet Blue on top of the steak, you can put the open-faced sandwich in the oven until it starts to melt; just remember not to leave it for too long so the salad goes soggy.


  • How to make a steak sandwich?

    It is as simple as it sounds. A steak sandwich is a sandwich with a steak inside, so fry a steak and add it to a delicious bread together with salad, mayonnaise, and cheese.

  • What is an open-faced sandwich?

    Traditionally, when you say, "open sandwich", you would think of the Danish "smørrebrød"; a single slice of bread, typically ryebread, with cold toppings such as fish, egg, and other cold cuts. In this case, since it is a grilled sandwich, it is a bit different. So, an open-faced sandwich like this is a sandwich made on a piece of toasted bread with warm meat, sauce etc. on top.

  • What goes well on a steak sandwich?

    The most important ingredient in a steak sandwich is of course the meat, and luckily, many things go well with steak. Besides the caramelized onions in this recipe, you can top the grilled sandwich with roasted mushrooms, crispy bacon, or sun-dried tomatoes. Think grilled vegetables, spicy sauces, and flavourful cheese.

  • What sauce goes with steak sandwich?

    The chipotle mayonnaise in this grilled open steak sandwich is perfect, but you can vary the recipe with other sauces. Think about what goes well with steak and use for example bearnaise, hollandaise with some spicy chili peppers, aioli, or the like.

  • What is the best cheese for grilled sandwich?

    For a grilled sandwich with steak, the best cheese is one with a lot of flavour. In general, you will need a cheese that melts well, for example, cheddar, gruyere, Manchego, or a soft cheese like the Velvet Blue in this sandwich, brie, or camembert.