Crockpot Steak Fajitas transforms an inexpensive cut of beef into flavorful fajitas with minimal effort! This recipe for Slow Cooker Steak Fajitas has all the delicious flavors of traditional fajitas minus the hassle, the sizzling skillet, and the price tag.
Looking for more fajita recipes? Try out my easy recipes for Vegetarian Fajitas, Instant Pot Steak Fajitas, and Honey Lime Chicken Fajitas.
![Slow Cooker Steak Fajitas Steak Faijtas on a wooden cutting board with fresh limes next to it.](https://amindfullmom.com/wp-content/uploads/2018/02/Crock-Pot-Steak-Fajitas.jpg)
Why Use the Crockpot to Make Steak Fajitas?
When it comes to making fajitas, using a slow cooker may seem like an odd choice, as fajitas are a fast-cooking skillet recipe. But there are several reasons I opt make Steak Fajitas using the slow cooker.
- Less Expensive. By cooking low and slow, you can use a less expensive cut of beef, like flank steak, round steak, or sirloin steak to make crockpot steak fajitas, and the beef will still become perfectly tender.
- Hands-Off. After slicing the beef, peppers, and onions, the slow cooker does the work for you.
- No Smoking Skillet. If you have made steak fajitas on the stovetop or ordered steak fajitas out, you know that traditional steak fajitas produce a lot of smoke and a lingering smell. The slow cooker keeps that permeating smell of smoke out of your kitchen and clothes.
How to Make Crockpot Steak Fajitas
The following tips are provided to help you achieve perfect results. You will find the detailed instructions in the recipe card at the bottom of this post.
Partially Freeze the Beef
For classic steak fajitas, you need to cut the steak into ½-inch strips against the grain. But it can be difficult to cut thin strips of raw meat. To make it easier, place your beef into the freezer for 15-30 minutes to partially freeze it. This helps firm up the cut of steak, making it easier to slice.
Layer Ingredients in Slow Cooker
Place the sliced beef, onions, peppers, and fajita seasoning into the crockpot and toss to evenly coat. Top with diced tomatoes.
![Slow Cooker Fajita Recipe Steak and pepper mixture topped with Rotel tomatoes in crockpot.](https://amindfullmom.com/wp-content/uploads/2024/06/Steak-Fajitas-Crockpot.jpg)
Slow Cook Fajitas
Now it is as easy as setting your crockpot to low or high and letting it do its job! For planning, keep in mind that crockpot fajitas need to cook for 6 hours on low and 3-4 hours on high.
Finish with Lime
Don't overlook adding the zest and juice of a fresh lime. This addition helps to enhance the flavors and make the steak fajitas pop.
![Fajitas Crockpot Cooked steak and peppers and onions in crockpot after adding lime juice and lime zest.](https://amindfullmom.com/wp-content/uploads/2024/06/Fajitas-Crockpot.jpg)
Use a Slotted Spoon to Serve
Because there is a lot of liquid in this recipe, it is best to use a slotted spoon to drain off excess liquid before trying to assemble the fajitas.
![Crockpot Fajitas Slotted spoon removing pepper and onion steak fajita mixture from crockpot.](https://amindfullmom.com/wp-content/uploads/2024/06/Easy-Crockpot-Fajitas.jpg)
Serving Suggestions
- For Traditional Fajitas: Serve the mixture on corn or homemade flour tortillas, with sour cream, cheese, and/or sliced avocado.
- As a Fajita Bowl: Serve the mixture and cooking liquid over Instant Pot Quinoa, Instant Pot Cilantro Lime Rice, or Instant Pot Brown Rice.
- Pair Crockpot Fajitas With: Pair these steak fajitas with Instant Pot Refried Beans, Instant Pot Spanish Rice, and a side of Homemade Guacamole, for a delicious restaurant-quality dinner.
![Steak Fajitas Recipe Slow Cooker Crockpot steak fajita mixture on flour tortillas topped with cheese and sour cream next to limes for assembled steak fajitas.](https://amindfullmom.com/wp-content/uploads/2024/06/Crockpot-Fajitas.jpg)
Recipe Modifications
- Omit the Tomatoes: While I find adding the diced tomatoes adds flavor and tenderizes the beef, they are unnecessary. You can simply omit them from the recipe, and instead add in 2 tablespoons of pale beer, beef broth, or water.
- Use Chicken: Swap the thinly cut steak for thinly sliced chicken breasts or thighs.
- Spice it Up: Add in up to 1 thinly sliced jalapeno to add a kick to the Crockpot fajitas.
More Easy Crockpot Recipes
- Crockpot Salsa Chicken
- Crockpot "Baked" Ziti
- Crockpot Minestrone
- Crockpot Chicken Chili
- Easy Crockpot Chili
- Crockpot BBQ Chicken Thighs
If you enjoyed these Crockpot Steak Fajitas, I would love for you to leave a comment and rating below.
![Two assembled steak fajitas on wooden plate served with sliced avocado.](https://amindfullmom.com/wp-content/uploads/2019/06/Crockpot-Steak-Fajita-Recipe-360x360.jpg)
Slow Cooker Steak Fajitas
Ingredients
- 1 pound flank or sirloin steak sliced against the grain into ½-inch strips
- 1 tablespoon fajita seasoning
- 1 large red bell pepper thinly sliced
- 1 large green bell pepper thinly sliced
- 1 large yellow bell pepper thinly sliced
- 1 large yellow onion thinly sliced
- 10 ounces diced tomatoes with green chiles (Rotel Tomatoes)
- 1 bunch fresh cilantro chopped (optional)
- 2 medium limes juice and zest
- tortillas, sour cream, Greek yogurt, shredded cheese, etc for serving
Instructions
- Place the sliced steak, peppers, and onions in a slow cooker. Season with fajita seasoning and toss to coat. Pour the diced tomatoes over top of the mixture and spread out evenly.
- Cook on low for 6 hours or on high for 3-4 hours. Once cooking time is finished, mix in the zest and juice of the limes and cilantro if using.
- Serve with a slotted spoon for fajitas or with the cooking liquid over rice or quinoa.
PAM
Well I thought this recipe
was some what tasty it felt like it needed a little bit more spice and flavor
Also it was super watery and when I went to roll it up in the tortilla everything just got soggy and gushed out the sides even though I did use a slotted spoon as recommended
What can I do to make it less watery before I serve it?
Kristen Chidsey
Hi Pam! Feel free to double the fajita seasoning or use spicy Rotel tomatoes. As for the liquid, you can drain the mixture over a strainer before serving if you find that using a slotted spoon did not prevent this issue.
Rose
Hello,
I think today will be the 3rd time I'll be making these fajitas in my crockpot. My husband loves these cooked in the crockpot even more than those cooked in a frying pan. I also appreciate that I don't have to get up with the chickens due to the fact it only takes 6 hours on low for these fabulous tasting fajitas to be fully cooked.
Kristen Chidsey
I am thrilled to hear you these fajitas are becoming a regular! I love how easy they are to make myself.
Rosalind
First time making this recipe. It came out so good and it’s so easy
Kristen Chidsey
I am so happy to hear you enjoyed, Rosalind!
cassidy
silly question, but can you use not frozen veggies as well???
Kristen Chidsey
I use frozen pepper and onion blend all the time--it works great 🙂
Brandi
We love fajitas! This recipe is so easy, almost set and forget kind of meal), slow cooker is such a time saver!
Kristen Chidsey
It is almost TOO easy--which is perfect for busy nights.
Amy Pletcher
Can you make this a freezer meal kit and put in the crockpot later? I have round steak in my freezer of course I don't want to refreeze the meat but it would be too hard to cut as is
Kristen Chidsey
Hi Amy! In the future, you ABSOLUTELY can make a freezer meal with this. I would actually suggest using a bag of frozen peppers and onions and slicing the beef and then freezing with the seasonings and canned tomatoes. Frozen peppers and onions are often cheaper and already perfect for a frozen meal. Defrost overnight in the refrigerator and then cook as directed.
April
These came out soooooo flavorful and were a big hit with the whole family!
Kristen Chidsey
I am so happy to hear that April! I love when a meal is a hit with the whole family.
Kate
I'm looking for a recipe where I don't have to add tomatoes. Would this still work without them?
Kristen Chidsey
I would use 1/2 cup of beer or stock to cook the meat in to replace the tomatoes.
nicole
Can I ask a silly question. I haven't used this function yet and have read your other article on how to use medium or high (high plus 15m per hour), so I get that. But do I need to leave the lid of venting? So that the pressure doesn't build up? Can I use my glass lid so I can see what is going on? Its probably a really stupid question but I've no idea. I love your site. Thank you so much for all of these articles and may God bless you!
Kristen Chidsey
Hi Nicole. You can use the glass lid OR you can use your regular Instant Pot Lid (just leave vent knob to venting, not sealed--although the instant pot should never get hot enough to seal anyways) Or you can make this recipe super quickly with my Instant Pot Steak Fajitas
Nutmeg Nanny
I love busting out my slow cooker in the summer. This needs to happen asap!
Kristen Chidsey
Yes, it does!
KC the Kitchen Chopper
I buy flank steaks for grilling but have never cooked the strips in a crock. These tacos look super delish.
Kristen Chidsey
They work great in crock pot too. Or so does a london broil and is cheaper!
Joy @ Joy Love Food
We love flank steak, but I've never made it in the slow cooker, great idea, my son loves both steak and tacos, so I will have to try this soon!
Kristen Chidsey
I hope you do Joy!
Lucy
These fajitas look so yummy! I've never cooked flank steak in the slow cooker, but you've totally inspired me to try. Love all the spices and fresh cilantro!
Kristen Chidsey
Thanks Lucy--hope you enjoy them!
Denise Wright
Wow this looks so easy. I'm going to have to try it. I usually do chicken because I never knew what kind of beef to use. Flank steak huh? I've never tried those frozen pepper either but I've always wanted to. Great recipe!
Kristen Chidsey
Denise, flank steak (or london broil--even cheaper) and frozen pepper strips make this an easy and affordable meal
Stephanie @ Daily Appetite
I don't think I would be able to stay out of the slow cooker! These looks so good.
Kristen Chidsey
Totally acceptable to sneak a few 🙂
Jessica @ A Kitchen Addiction
I've never tried making fajitas in the slow cooker before! Can't wait to try this!
Kristen Chidsey
I hope you give these a try Jessica. We LOVE them in our family!
David @ CookingChat
interesting! not something I would have thought to make in the slow cooker, sounds tasty.
Kristen Chidsey
Give it a try David--so good!
Ronda Eagle
I have just started using my crock pot more and I'm loving all the delicious meals I can coax out of it with just a modicum of attention to cooking time and ingredient. I'm going to add these Slow Cooker Steak Fajitas to my meal plan to try.
Kristen Chidsey
I LOVE my slow cooker Ronda!