Description

This Steak and Herb Pastry Sandwich is a gourmet twist on comfort food, combining tender steak, fragrant herbs, and optional melty cheese, all encased in golden, flaky puff pastry. Perfect for upscale lunches, cozy dinners, or as a show-stopping picnic centerpiece, this steak pastry sandwich brings rich flavor and elegant presentation to the table.

Ingredients

For the Steak Filling:

1 lb (450 g) ribeye or sirloin steak, trimmed and thinly sliced
1 tbsp olive oil
1 small onion, thinly sliced
2 cloves garlic, minced
1 tsp fresh rosemary, finely chopped
1 tsp fresh thyme, finely chopped
1/2 tsp cracked black pepper
1/2 tsp sea salt
1 tsp Worcestershire sauce
1 tbsp Dijon mustard
Optional: 1/4 cup red wine or beef broth (for deglazing)

For the Pastry:

1 sheet puff pastry, thawed
1 egg, beaten (for egg wash)
1 tsp sesame seeds or flaky salt (optional, for garnish)

Optional Add-Ins:

1/2 cup shredded gruyère, provolone, or sharp cheddar cheese
A handful of baby arugula or spinach
Sautéed mushrooms or roasted red peppers

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Instructions

Prepare the Steak Filling:
- Heat olive oil in a skillet over medium-high heat.
- Sauté onions for 3–4 minutes until translucent.
- Add garlic, rosemary, and thyme; cook until fragrant.
- Push onions aside and sear steak slices for 2–3 minutes.
- Add Worcestershire sauce, Dijon, salt, and pepper. Deglaze with wine or broth if using. Simmer briefly, then remove from heat. Let cool 10–15 minutes.
Assemble the Pastry Sandwich:
- Preheat oven to 400°F (200°C); line a baking sheet with parchment.
- Roll puff pastry slightly.
- Place cooled steak filling in center, leaving a 1-inch border.
- Add cheese and greens if using.
- Fold pastry over and seal edges with a fork.
- Brush with egg wash, sprinkle sesame seeds or salt, and slit top for steam.
Bake:
- Bake for 20–25 minutes until pastry is golden and puffed.
- Rest 5–10 minutes before slicing.

Notes

Prep filling in advance to save time.
Use mini pastries for parties or picnics.
Pair with dipping sauces like horseradish cream or balsamic glaze.
Swap puff pastry for pie dough or phyllo for texture variations.

Prep Time: 20 minutes
Cook Time: 25 minutes
Category: Main Course
Method: Baking
Cuisine: American