Slow Cooker BBQ Flat Iron Steak Sandwiches Recipe -
Slow Cooker BBQ Flat Iron Steak Sandwiches Recipe
  • READY IN 5+ hrs

Slow Cooker BBQ Flat Iron Steak Sandwiches

Recipe by  

"Ridiculously easy sauce and slow cooking make this savory steak sandwich a family favorite. It's also good with sharp Cheddar."

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Ingredients Edit and Save

Original recipe makes 4 servings Change Servings
  • PREP

    15 mins
  • COOK

    5 hrs

    5 hrs 15 mins


  1. Mix the ketchup, Italian dressing, soy sauce, and molasses in a small bowl. Place the steak in slow cooker, sprinkle with onions, and pour the ketchup mixture over the steak.
  2. Turn the slow cooker to High and cook for 1 hour. Reduce the heat to Low and continue cooking until the meat is tender, about 4 hours. Serve on hoagie buns and top with 1/4 cup coleslaw, if desired, for a Southern BBQ flavor.
Kitchen-Friendly View


  • Easy Cleanup
  • Try using a liner in your slow cooker for easier cleanup.

Reviews More Reviews

Most Helpful Positive Review
Jul 26, 2010

Great, tasty sandwich with lots of flavor. I recommend making the following adjustments to the recipe: season both sides of the steak with salt and pepper. Instead of using dried onion, I chopped a medium onion, minced four cloves of garlic and added 1/4 cup of molasses to 3 pounds of flat iron steak, allowing it to cook for six hours. The end result is a sweet, tangy bbq sauce with fork tender steak. Wonderful!

Most Helpful Critical Review
Feb 10, 2012

This is just an OK recipe. I followed the recipe exactly even used the dried chopped onion, I know some people have opted to use fresh onion instead but I made these for my sons dinner tonight and my youngest son refuse to eat it! I found the steak dry, the taste I personally did not like. Just did not taste like BBQ to me, my kids thought it was ok. I don't think this is a recipe I will be using again.

Jun 22, 2010

Yummy! First time I've tried a flat iron steak, and I followed the recipe exactly. So tender and delicious. Just the right bbq flavor too. I'll be making this often. Thanks for sharing.

Aug 18, 2010

I love pantry booty recipes. this was so simple for it's delishness. gonna double it for leftovers next time!!!!!

Nov 24, 2010

AWESOME!! the best sandwich I ever made, easy and cheep.

Jan 15, 2012

My hubby proclaimed this a definite keeper. So that's it! I followed the recipe with the exception of the onions-- I used a half of a fresh chopped onion. I made Honey Wheat Sandwich Rolls and Sweet Restaurant Slaw from this site to round out our dinner. The only thing I'd do different is to double the recipe and freeze some if it doesn't all get eaten! And I would try cutting the whole onion in slices rather than chopping so it'd fit better on the sandwich. I myself would really like this over rice rather than a sandwich, but however it's made would be just fine! Very easy recipe except for the job of cutting off the fat from the meat beforehand. I lost a pound of the meat purchase just from that, and it takes a little cutting to get to the slowcooker!

Nov 09, 2010

Could not find flat iron steak so I used a different kind of beef. Came out nice and tender, falling apart. I also seasoned the meat with flour, salt, and pepper and used thin sliced onion. This is not a recipe that I would say is awesome BUT it was so quick to put together (10 mins start to finish), one bowl and the crockpot to clean, and when I came home from work dinner was done. Could not get any easier. The coleslaw added a nice crunch. Used Sweet Restaurant Slaw from AR which is also very easy and served it with rolls and white rice. Will make again

Oct 11, 2010

Ridiculously easy and ridiculously delicious! I used 1/4 cup chopped onion instead of the dried onion, and served for dinner with mashed potatoes, Yum!


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  • Calories
  • 987 kcal
  • 49%
  • Carbohydrates
  • 89.8 g
  • 29%
  • Cholesterol
  • 159 mg
  • 53%
  • Fat
  • 42.7 g
  • 66%
  • Fiber
  • 4.6 g
  • 19%
  • Protein
  • 60 g
  • 120%
  • Sodium
  • 2186 mg
  • 87%

* Percent Daily Values are based on a 2,000 calorie diet.

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