Greek Slow Cooker Flank Steak
This Slow Cooker Flank Steak is an easy, flavorful dinner seasoned with garlic and oregano, then cooked with onions in a savory beef broth. The slow cooker does most of the work, giving you tender slices of steak and a delicious light gravy that’s perfect for a busy weeknight or hearty Sunday meal.
One of the best things about this recipe is that the slow cooker does most of the work. Add everything to the crock pot in the morning, and by dinnertime, you’ll have tender slices of beef with plenty of savory onions and gravy.
This recipe makes enough steak to reserve half for another meal. I love recipes that help me get a head start on dinner for the following night!
If you enjoy easy beef dinners, you may also like my Stuffed Flank Steak or Easy Broiled Flank Steak. Both recipes are great if you are looking for more ways to use this budget-friendly cut of beef.
Table of Contents
Why You’ll Love This Recipe
- Cooking flank steak low and slow makes it tender and flavorful.
- Garlic, oregano, and a touch of cayenne add plenty of flavor without a long ingredient list.
- The broth can easily be thickened into a simple gravy.
- Reserve half of the cooked steak for another meal.
- This is a naturally low-carb main dish when served with vegetables.
Ingredients
This is a list of the ingredients that you need to make your grocery shopping easier. You can find the full list of the ingredients and amounts needed in the recipe card at the bottom of this post.
- Flank steak: This lean cut of beef becomes tender when cooked slowly. Cutting it across the grain before serving is important for the best texture.
- Onion: The chopped onion creates a flavorful base for the beef and softens as it cooks.
- Canola oil: The oil helps the garlic and seasonings stick to the steak. Avocado oil or olive oil can also be used.
- Garlic: Fresh minced garlic adds savory flavor to the meat.
- Oregano: Dried oregano gives the steak its Greek-inspired flavor.
- Salt and black pepper: These simple seasonings bring out the flavor of the beef.
- Cayenne pepper: A small dash is optional, but it adds a pleasant hint of heat.
- Beef broth: Use low-sodium broth so you can better control the amount of salt in the finished dish.
How to Make Slow Cooker Flank Steak
This is a quick overview of the step-by-step instructions for making this recipe. You can find the complete list of instructions in the printable recipe card at the bottom of this post.
- This easy crock pot dinner takes only a few minutes to assemble.
- First, place the chopped onion in the bottom of a 5- to 7-quart slow cooker.
- In a small bowl, stir together the oil, minced garlic, oregano, salt, black pepper, and cayenne pepper, if using. Rub the seasoning mixture over both sides of the flank steaks.
- Place the seasoned steaks over the onions, and then pour the beef broth into the slow cooker.
- Cover and cook on low for 8 hours or until the meat is tender.
- Transfer the steak to a cutting board and let it rest briefly. Slice it thinly across the grain, reserving half of the meat for another meal if desired.
- Serve the remaining steak with the tender onions and some of the cooking broth or thickened gravy spooned over the top.
What To Serve With Greek Flank Steak
If you are looking for delicious dishes to pair with your meal, try serving it over a bed of no drain mashed potatoes or mashed cauliflower. You can also add a simple vegetable side dish such as green bean salad or baked zucchini.
Substitutions and Additions
- Replace canola oil with avocado oil or olive oil.
- Add sliced mushrooms for extra vegetables and savory flavor.
- Add a little rosemary or thyme along with the oregano.
- Use smoked paprika instead of cayenne for flavor without as much heat.
- Replace some of the beef broth with dry red wine for a richer sauce.
- Add a splash of fresh lemon juice before serving to brighten the Greek-inspired flavors.
How To Store
Refrigerator: Store the cooled steak, onions, and gravy in an airtight container in the refrigerator for up to 3–4 days.
Freezer: Place the steak in a freezer-safe container with some of the cooking liquid to help keep it moist. Freeze for up to 3 months.
Reheating: Warm the steak gently in a covered skillet over low heat or in the microwave. Add a splash of broth if the meat or gravy seems dry.
Sandra’s Pro Tips For Crock Pot Flank Steak
- Cook the flank steak on low for the most tender result.
- The longer, gentler cooking time works best for this lean cut of beef.
- Place the onions beneath the meat so they flavor the broth while helping keep the steak elevated.
- Slice the cooked steak across the grain.
- Cutting against the grain can make the meat seem tough.
- Flank steak is lean, so avoid leaving it uncovered or reheating it for too long.
- If your gravy becomes too thick, whisk in another splash of beef broth.
- Wait until the end of cooking to adjust the salt, especially if you aren’t using low-sodium broth.
FAQs
Do you have questions about this recipe? Here are the answers to the most commonly asked questions for this recipe.
The steak does not need to be completely submerged. One cup of broth creates enough moisture and flavorful cooking liquid while the covered slow cooker traps steam.
Low heat is recommended because flank steak is lean and benefits from gentle cooking. If necessary, you can cook it on high for approximately 4–5 hours, checking that the beef is tender before serving.
Look for the long lines running through the steak. Position your knife across those lines, not parallel to them, and cut the meat into thin slices.
Other Delicious Slow Cooker Beef Recipes You May Enjoy
Greek Flank Steak Crock Pot
Equipment
- Slow Cooker 6 quart or larger
Ingredients
- 2.5 pounds flank steaks cut in half
- 1 large onion chopped
- 2 tablespoons canola oil
- 2 cloves garlic minced
- 1 tablespoon dried oregano
- 3/4 teaspoon salt
- 3/4 teaspoon black pepper
- 1 cup low-sodium beef broth
- Dash Cayenne pepper optional
Instructions
- Place onion in a 5 – 7 quart slow cooker.
- Stir together oil, garlic, oregano, salt, pepper and cayenne pepper (optional).
- Rub mixture over steaks and place on onions in the slow cooker.
- Add broth, cover and cook on low 8 hours.
- Cut steak across the grain into thin slices (reserve half steak for another meal)
- Serve remaining steak with onions and gravy from slow cooker.
Notes
Nutrition
Disclaimer
Please note that the nutritional information provided are guidelines and may vary based on the brand of products used. For your specific nutritional goals use My Fitness Pal or Verywell Fit recipe calculators. All content within this site is not intended as medical diagnosis or treatment and should not be considered a substitute for professional medical expertise.
Just found this wdbsite! Trying this today…sounds delicious!
Welcome. I’m glad you’re here. Let me know how you like it!
Bring on the Greek! I was so surprised to find so many Greek restaurants here in Mesa but I am so happy because I love Greek food! Now I can make the tender meat at home, cheaper than take out, and I don’t even have to heat up the grill. This is a plus in the arizona heat when I don’ t want to stand over the grill outside!
The seasoning is so simple, but I know its going to make this so flavorful! I love any crockpot meals… as they are such a timesaver. Im putting flank steak on my grocery list right now!
Flank steak is tasty! I am loving the Greek spin you added to yours! Looks so fall about tender!
What a lovely meal and made in the slow cooker? Even easier! Flank steak has such great flavor I know we will love this meal!!
This subscription service sounds awesome and this flank steak recipe in particular has my mouth watering. I love the ease of making this in the slow cooker and I know our boys will love it as well. Thanks for another fantastic recipe!
I remember your original post about emeals. Our market has a similar service in their store. They have one cooler set up with all the ingredients needed to prepare a meal along with the recipe on how to make it. I’ve never tried one but I’m sure a lot of people do.
We are undergoing kitchen renovations and I’m so tired of cooking on an induction burner! Your slow cooker flank steak looks fabulous and I’m hoping to have it on our menu soon!!!
Tried it, and LOVED it! Delicious, moist and so simple! This is a keeper! Thank you!!
Thanks, Christina!! I love that this recipe takes no time to put together. It’s a favorite 🙂
Wow Sandra! You’re a supermom! I hope I can be like you in the future! Haha. Working and planning meals for the family every day is no easy feat! And I have to agree! We always take way longer to plan our meals and shopping list than the actual cooking itself! (At least I do!) So this meal planner subscription must be really helpful!
You are so sweet, Sammie! When you love cooking it makes it easier, plus I like to eat good food! LOL YES, having a healthy meal plan at my finger tips is key!!
That flank steak looks amazing in those photos and I’m sure the meal planning service would be good. I agree that I wouldn’t want to pay the money and live on only slow cooker meals. It would be way too limiting for me.
Hi Maureen! One of the moistest flank steaks I’ve made! They have so many plans to choose from and I can switch, but I REALLY like the recipes that have come with the slow cooker menu!
Sandra, that looks absolutely DELICIOUS! I am such a huge fan of eMeals and of your blog! Welcome to the eMeal’s family! I am really excited to try out the slow cooker eMeals plan now! <3
Thanks, Brandi! I’m super impressed with the recipes, especially nice when one meal is reinvented into another delicious meal!
I’m like Liz, I would never think to prepare flank steak in a slow cooker. It is something I’ve always eaten rare but I do say…the steak looks good.
I have one other flank steak recipe that is slow cooked, but we mostly grill. The meat was super tender out of the slow cooker.
It was tender and flavorful. Slow cookers is the best invention!
I always have a flank steak in the freezer, but never thought about cooking it in the slow cooker! Your recipe sounds wonderful…and so easy!!!
It is SUPER easy! That’s what I love about slow cooker meals. You put the ingredients together and that’s it!
Agree with Katerina, that steak sure looks juicy and delicious.
Thanks, Norma! It was as good as it looks!
This steak looks so juicy and delicious I cannot resist!
It was super delicious! I’ll be making it again soon!