Stuffed Flank Steak

This stuffed flank steak (some call them steak pinwheels) was one of the first fancy schmancy meals I made back when I was just dipping my toe into the cooking world. I’ve always loved steak, but over time I got kinda tired of the classic pan-seared steak (still love it though!), so I started to look for something new. When I developed this stuffed flank steak recipe… Y’all, it was love at first bite! I perfected the mushroom and spinach stuffing, and years later, it still flies off plates every time I make it.

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Closeup of slices of stuffed flank steak filled with a spinach and mushroom mixture on a white plate, with more steak rolls in the background

How To Make Stuffed Flank Steak

Cook The Mushroom Mixture

Chopped mushrooms, onions, rosemary, and butter in a skillet ready to sauté

Step 1: Heat olive oil and butter in a pan. Once the butter melts, add mushrooms, onions, rosemary, salt, and pepper. Cook until tender, then stir in the garlic and cook briefly without letting it burn.

Sautéed mushroom and onion mixture cooked down in the skillet

Step 2: Add in Worcestershire sauce, stir together, and cook for a few more minutes. Then, set the mixture aside while you prepare the steak.

Stuff, Bake, and Cut the Steak Pinwheels

Raw flank steak laid flat on a cutting board, topped with the cooked mushroom mixture

Step 3: Lay the butterflied steak on a cutting board and season the outside with salt and pepper. Flip it over and spread the mushroom mixture evenly across the inside.

Flank steak topped with fresh spinach and breadcrumbs layered over the mushroom mixture

Step 4: Arrange spinach and sprinkle breadcrumbs evenly over the surface of the mushroom mixture. Also, drizzle half of the butter over the breadcrumbs.

PRO TIP: Add some grated Parmesan or crumbled feta to the stuffing and thank me later, boos.

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Rolled and stuffed flank steak placed in a white baking dish before cooking

Step 5: Roll the steak up tightly from the bottom and secure the seam with toothpicks. Transfer it to a baking pan and brush the top with the remaining butter.

Cooked and sliced stuffed flank steak in a baking dish

Step 6: Bake until the steak reaches 145°F for medium to medium-well, or 155°F if you prefer it well done.

Closeup of slices of stuffed flank steak filled with a spinach and mushroom mixture on a white plate, with another steak roll in the background

Stuffed Flank Steak Recipes {Steak Pinwheels}

Stuffed flank steak is easy to make with flank steak that has a filling of mushrooms, onions, spinach, rosemary, and spices. Cook in the oven and cut into steak pinwheels!
5 from 1 vote
Prep Time 30 minutes
Cook Time 40 minutes
Rest Time 10 minutes
Total Time 1 hour 10 minutes
Course: Main Course
Servings: 6 servings

Ingredients

  • 1 teaspoon olive oil
  • 1 tablespoon unsalted butter
  • 1 ½ cups chopped mushrooms
  • ½ cup diced onions
  • 1 teaspoon rosemary
  • 2 teaspoons minced garlic
  • 2 teaspoons Worchestershire sauce
  • Kosher Salt and Black Pepper
  • 1 lb butterflied flank steak
  • 1 ½ cups fresh spinach
  • ½ cup seasoned breadcrumbs
  • ¼ cup melted unsalted butter
  • Toothpicks for securing

Instructions

  • Preheat your oven to 350 degrees.
  • Add olive oil and butter to a medium-sized pan over medium-high heat. Once both melt together, add mushrooms, onions, rosemary, and salt and pepper to taste, stir and cook until tender.
  • Next, add the minced garlic and cook for an additional minute making sure not to burn it. Add in Worcestershire sauce, stir together, and cook for an additional 1-2 minutes. Then, set the mixture aside while you prepare the steak.
  • Lay butterflied steak on a cutting board and season with salt and pepper on the outside of the steak then turn over. Spoon the mushroom mixture in an even layer across the steak.
  • Next, arrange spinach and sprinkle breadcrumbs evenly over the surface of the mushroom mixture. Drizzle half of the butter over the breadcrumbs.
  • Starting at the very bottom of the steak, carefully and tightly roll the steak, and secure the seam with toothpicks to hold it together.
  • Place the rolled steak in the center of a baking pan and brush the top of it with the remaining butter.
  • Bake until the probe inserted into the steak reaches an internal temperature of at least 145 degrees F, around 40 minutes. Your steak will be medium to medium well around this temperature. If you prefer it well done, continue cooking until it reaches an internal temperature of 155.
  • Remove the rolled steak from the oven and allow it to sit for 10 minutes. Cut the steak into 1-inch thick slices, remove toothpicks, and serve with easy roasted brussel sprouts if you desire.

Notes

  1. Give the steak a light tap with a meat mallet to even it out. This helps it cook evenly and makes it easier to roll without tearing. You want it thin enough to roll but still strong enough to hold in the filling.
  2. Don’t overdo the stuffing. I know it’s tempting to load it up, but too much filling will have your stuffed rolled flank steak busting open in the oven.
  3. Outta toothpicks? No problem. Butcher’s twine or cut-down skewers work just as well to keep everything tight and in place.
  4. Let it rest before slicing. For at least 10 minutes so the juices stay put and don’t run all over your cutting board.
How to Store & Reheat this Stuffed Flank Steak
  • Fridge: Wrap it in foil or plastic wrap, or stick it in an airtight container. It’ll stay good in the fridge for 3-4 days. You can also prep the raw rolled steak ahead and chill it for up to 6 hours before baking.
  • Freezer: Wrap the whole thing or slice it into pinwheels first. Use freezer-safe wrap or bags and it’ll keep for up to 3 months. When you’re ready, thaw it overnight in the fridge.
  • Reheating: The oven is your best bet, boos. Set it to 350°F, cover the steak with foil, and heat for 10-15 minutes until warmed through.

Nutrition

Calories: 262kcal | Carbohydrates: 13g | Protein: 19g | Fat: 15g | Saturated Fat: 8g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 0.4g | Cholesterol: 71mg | Sodium: 213mg | Potassium: 537mg | Fiber: 2g | Sugar: 3g | Vitamin A: 1020IU | Vitamin C: 4mg | Calcium: 53mg | Iron: 2mg
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Serving Suggestions

Closeup of several sliced stuffed flank steak with spinach and mushroom stuffing on a wooden cutting board. There are fresh spinach leaves and a head of garlic next to it

Recipe Help

Can I butterfly the steak by myself?

Of course, boos! Just lay it flat on a cutting board and slice it in half horizontally, but don’t cut all the way through. You want it to open like a book. Take your time with a sharp knife and you’ll be good!

What do I look for when buying flank steak?

Go for one that’s deep red with some fine marbling.

Can I use a different cut of beef for this stuffed flank steak recipe?

You can! Skirt steak works great too. It might cook a little faster, so keep that thermometer close.

More Steak Recipes

Filed Under:  Beef and Lamb, Dinner, Oven

Comments

  1. I haven’t made this yet but will be soon … I can just tell it’s going to be a winner! I have a pellet smoker and I’m thinking that adding a touch of smoke to it by cooking it in the smoker at 350 F. vs. the oven will be a nice bonus. I also may dabble a bit with the meat temperature as I like flank steak a little more toward medium rare … so I might pull it at 138-140 F. Thanks for posting.

5 from 1 vote

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