Introduction

This steak sandwich is a delicious combination of tender beef, caramelized onions, and melted Havarti cheese, all nestled inside a buttery baguette. With a flavorful herb butter spread, it’s a satisfying meal perfect for lunch or a casual dinner.

The image shows two halves of a sandwich on a white marbled textured metal tray. Each half has three main layers: the top layer is a light golden brown crusty bread with a soft and airy inside, the middle layer contains dark brown cooked pieces of meat mixed with caramelized golden-brown onions, and the bottom layer is made up of melted white cheese that slightly drips over the meat and onions, adding a creamy texture. Around the tray, there are small sprigs of fresh green parsley for decoration. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

1/2 cup unsalted butter (softened)
1 tbsp fresh dill (diced)
3 garlic cloves
1 tbsp oil
1 lb steak
1 tbsp salt (adjust to taste)
1 large yellow onion
4 slices Havarti cheese
1 baguette

Instructions

Step 1: Prepare the herb butter spread by combining softened butter with crushed garlic and diced dill. Mix until well combined and set aside.
Step 2: Slice the steak into thin strips. To make slicing easier, freeze the steak for a few minutes before cutting.
Step 3: Heat a skillet over high heat and add oil. Add the steak strips, season generously with salt, and cook until the beef is just golden. Remove from the skillet and set aside.
Step 4: Slice the onion into half rings. Using the same skillet, sauté the onions until golden brown, then remove from heat and set aside.
Step 5: Slice the baguette lengthwise and spread the prepared herb butter evenly on both sides of the bread.
Step 6: Layer the steak strips, sautéed onions, and Havarti cheese slices on the bottom half of the bread.
Step 7: Leave the sandwich open-faced and broil in the oven for about 2 minutes, or until the cheese is bubbly and melted.
Step 8: Remove from the oven, close the sandwich, slice, and serve immediately.

Tips & Variations

Freezing the steak briefly before slicing helps achieve even, thin strips for better texture and quicker cooking.
You can swap Havarti cheese with provolone or Swiss for a different melty flavor.
Add a handful of fresh arugula or spinach after broiling for a fresh, peppery crunch.
For extra flavor, toast the buttered baguette lightly before adding the steak and toppings.

Storage

Store any leftover sandwich components separately in airtight containers in the refrigerator for up to 2 days. Reheat steak and onions gently in a skillet before assembling a fresh sandwich to keep the bread from becoming soggy. It’s best to enjoy the sandwich freshly made.

How to Serve

A close-up view of a sandwich with a light golden toasted baguette as the top and bottom layers. Inside, the first layer shows thin slices of cooked steak with a slightly browned, juicy texture. Above the steak, there is a layer of caramelized onions with a mix of golden brown and slightly dark, crispy edges. The top layer consists of melted white cheese, soft and slightly flowing over the onions, adding a creamy contrast to the sandwich. The sandwich sits on a dark surface with a subtle reflection. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use a different cut of steak?

Yes, flank, skirt, or sirloin steaks work well for this recipe. Just ensure they’re sliced thinly for quick cooking and easy eating.

What if I don’t have fresh dill?

You can substitute dried dill, but use less—about 1 teaspoon—to avoid overpowering the butter spread. Fresh herbs are preferred for brightness.

Herb-Buttered Steak Sandwich with Dill, Onion, and Havarti Recipe

Print Recipe

★★★★★

4.4 from 85 reviews

A flavorful steak sandwich featuring tender beef strips, caramelized onions, and creamy Havarti cheese, all layered on a buttery garlic-dill baguette and finished under the broiler for a melty, satisfying meal.

Author: Dylan
Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes
Yield: 4 servings 1x
Category: Sandwich
Method: Broiling
Cuisine: American

Ingredients

Scale

Herb Butter

1/2 cup unsalted butter, softened
1 tbsp fresh dill, diced
3 garlic cloves, crushed

Steak Sandwich

1 tbsp oil
1 lb steak, thinly sliced into strips
1 tbsp salt, adjust to taste
1 large yellow onion, sliced into half rings
4 slices Havarti cheese
1 baguette, sliced lengthwise

Instructions

Prepare Herb Butter: In a bowl, combine the softened unsalted butter with crushed garlic cloves and diced fresh dill. Mix thoroughly until the mixture is uniform and creamy. Set aside.
Slice the Steak: To make slicing easier, briefly freeze the steak for a few minutes. Then cut it into thin strips suitable for sandwich filling.
Cook the Steak: Heat a skillet over high heat and add 1 tablespoon of oil. Once hot, add the sliced steak and season generously with salt. Cook until the beef develops a golden exterior but remains tender. Remove from skillet and set aside.
Sauté Onions: Using the same skillet, add the sliced yellow onion half rings and sauté until they turn golden brown. Remove from heat and set aside with the cooked steak.
Assemble the Sandwich: Slice the baguette lengthwise and spread the prepared herb butter generously on both sides of the bread. Layer the cooked steak slices evenly over one side, top with sautéed onions, and then place slices of Havarti cheese on top.
Broil the Sandwich: Keep the sandwich open-faced and place it under the broiler for approximately 2 minutes or until the cheese becomes bubbly and melted to perfection. Remove carefully and serve immediately.

Notes

For easier steak slicing, briefly freeze the meat before cutting.
Adjust salt to your taste preference when seasoning the steak.
You can use different types of cheese if Havarti is unavailable, like provolone or mozzarella.
Broiling time may vary depending on your oven; watch carefully to avoid burning.
Serve the sandwich hot for the best flavor and texture.

Keywords: steak sandwich, herb butter, caramelized onions, Havarti cheese, broiled sandwich, quick steak recipe