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French Onion Steak Sandwich with Grilled Mushrooms Recipe

French Onion Steak Sandwich with Grilled Mushrooms Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.6 from 10 reviews
  • Author: Maria
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Yield: 4 sandwiches
  • Category: Main Course
  • Method: Stovetop
  • Cuisine: American
  • Diet: Non-Vegetarian

Description

Indulge in the savory goodness of a French Onion Steak Sandwich with Grilled Mushrooms. This hearty sandwich features tender steak, caramelized onions, sautéed mushrooms, and gooey cheese on toasted rolls, creating a flavor-packed meal that’s perfect for lunch or dinner.


Ingredients

Scale

For the Caramelized Onions:

  • 2 tablespoons butter
  • 2 large onions, thinly sliced
  • 1/4 cup beef broth
  • 1 tablespoon Worcestershire sauce
  • 1 teaspoon fresh thyme (or 1/2 tsp dried)
  • Salt and black pepper to taste

For the Grilled Mushrooms:

  • 1 tablespoon olive oil
  • 8 oz cremini or button mushrooms, sliced
  • Salt and pepper to taste

For the Steak Sandwich:

  • 1 pound flank steak or ribeye, thinly sliced
  • 4 hoagie or French rolls, toasted
  • 8 slices provolone or Swiss cheese
  • Optional: garlic aioli or Dijon mustard for spreading


Instructions

  1. Caramelize Onions: Heat olive oil and 1 tablespoon of butter in a skillet. Cook onions until caramelized. Add beef broth, Worcestershire sauce, thyme, salt, and pepper.
  2. Grill Mushrooms: Sauté mushrooms in butter until golden and tender. Season with salt and pepper.
  3. Cook Steak: Brown steak in the same pan used for onions. Combine with onions.
  4. Assemble Sandwich: Layer steak and onions on toasted rolls, top with mushrooms and cheese. Broil if desired.

Notes

  • You can prep the onions ahead to save time.
  • Ribeye gives a richer flavor, but flank or skirt steak work well too.
  • Add arugula or sautéed spinach for extra greens.

Nutrition

  • Serving Size: 1 sandwich
  • Calories: 610
  • Sugar: 6g
  • Sodium: 740mg
  • Fat: 32g
  • Saturated Fat: 15g
  • Unsaturated Fat: 14g
  • Trans Fat: 0g
  • Carbohydrates: 38g
  • Fiber: 3g
  • Protein: 42g
  • Cholesterol: 110mg