A Crockpot Smothered Flat Iron Steak with only five ingredients and four hours cook time.
When you are very busy, the crockpot is such a friend!
The Crockpot makes it tender!
This recipe cooks in 2 to 4 hours in the crockpot depending on if you cook on high or low. Either way, I have found the crockpot makes the meat really tender.
Make your own gravy topping!
I decided to create my gravy with a bottle of Balsamic dressing I had in the cabinet. It was tasty and we enjoyed it.
Also see our recipe for Crockpot Flat Iron Steak and Mushroom Gravy
Crockpot Smothered Flat Iron Steak
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1 Flat Iron Steak
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Bottle of Balsamic Dressing
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1 Large Vidalia Onion
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1 pkg. fresh portabella mushrooms cut up
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Seasoning to taste
- Wash your flat iron steak and place it into the crockpot,
- Add desired seasoning,
- Pour the bottle of dressing over the top of meat,
- Top with cut up onions and mushrooms,
- Cook on high for about 2 hours or low for about 4 hours. The steak should be well done after these cooking times.

Prep Time | 5 min |
Cook Time | 2 hr |
Servings |
people
|
- 1 Flat Iron Steak
- 2 cans Beef Gravy I prefer the name brand
- 1 pkg. Mushrooms, cut into pieces
- 1 tsp. Salt
- 1 tsp. Pepper
Ingredients
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- Set the Crockpot to low setting.
- Place the Flat Iron Steak into the prepared Crockpot.
- Add cut up mushrooms.
- Pour gravy over all to cover completely.
- Sprinkle with seasonings.
- Cook on Low setting for about 3-4 hours until fork tender.
- Serve and enjoy!
What is your favorite quick and easy crockpot meal?
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Jennifer Abel says
Shirley you just know how to make my mouth water! Yum and thanks for sharing!
Shirley Wood says
Thank you for those kind words Jennifer.
Trish says
This looks really delicious. I will definitely be trying this. Thanks for the recipe.
Honest Mum says
Looks tasty! Thanks for linking up to #brilliantblogposts, please link back or add my badge. Thanks
Shirley Wood says
Thanks for stopping by and taking the time to comment. Your badge is already on my Blog Hops page, I put it there when I linked up. https://intelligentdomestications.com/linky-parties/blog-hops
Merlinda Little (@pixiedusk) says
I can already imagine how tender this is! And that luscious sauce! Now I need something to eat. This post made me famish =) #BrilliantBlogPosts
Shirley Wood says
Merlinda, thanks for stopping by. It was really good with the Balsamic but next time we will indulge ourselves a bit with that other yummy gravy!
Kristen from The Road to Domestication says
I’m not sure I’ve heard of a flat iron steak before…but my hubby loves all kinds of steaks – looks like he would love this, too! (And I’m all for any kind of Crock Pot use!)
Shirley Wood says
I know, Kristen. I’m apparently behind in the flat iron steak world too. When I was researching how to cook it, I was surprised at how many people already knew. It was my daughter who told me about it.
Zan says
Looks delish! I want to try this out. I love all your recipes; you seem to be a great cook! I can tell from the looks of the recipes you share and from the pecan glazed green beans that I have tried!
Shirley Wood says
Zan, I’m so glad you enjoyed the pecan glazed green beans 🙂 I don’t cook every day but I have been cooking for over 36 years now. I love reading recipes and learning new good things to cook! I have a nice cookbook collection and enjoy reading through them also! Thanks for the compliment 🙂
Southern Angel says
That looks amazing.. and like something my husband might actually eat if I don’t tell him about the balsamic dressing lol.
Shirley Wood says
Thanks for stopping by Angel. Make it with the Creamed Vidalia Onion & Mushroom sauce instead. I’ve never met a man who would like that 🙂
Alli says
I’m always looking for new slow cooker recipes to cook for the family while at church on Sunday. We’ve grown too much to eat out after church! This one certainly fits the bill and my family will love it! Pinning!
Shirley Wood says
It’s a ‘good-un’ ! Alli. Let me know how you enjoy it.
Amanda Smith says
Steak and onions, nothing better. This sounds great! I am always looking for new crock pot recipes. This is getting pinned for the next time flat iron steak goes on sale. And if it doesn’t soon I may try it on a round steak. YUM!
Shirley Wood says
Ohhh, I’m sure that round steak would be good too, Amanda!