Use your slow cooker to make delicious and easy steak fajitas with a homemade seasoning that is sure to be a hit with the family.Jump to Recipe
I love using the slow cooker for meals at any time of the year. When it’s hot outside, it’s perfect because it doesn’t heat up the house like the stove and oven. In the cooler months (because let’s face it, there aren’t cold months in Houston), the slow cooker is an easy way to make delicious soups to warm you from the inside. Steak fajitas in the slow cooker is a great middle-ground type of meal.
When I suggested this meal, (adapted from here) Justin wasn’t too sure about it. He can be picky about the way his steak is cooked. We weren’t sure that the slow cooker would do the job. He likes his medium-rare, while I prefer mine medium-well. Luckily, the meat ends up having so much flavor and soaks up a lot of the juice in here. It stayed moist and didn’t get that tough texture overcooked meat tends to have.
For this recipe, you can use any salsa you want. This allows you to determine how spicy they are based on what type you purchase. I can’t handle spicy foods, so I used a mild picante sauce when we made this for ourselves. If Justin had his way, we would have used at least a medium, if not hot, salsa.
You can buy packaged fajita seasoning, but I suggest making your own. It’s quick and easy. Plus it’s made from spices and seasonings that most people have around the kitchen. I make it in large batches and keep the rest in an airtight container for other recipes.
Step by Step
I was able to find some beef already cut into strips. This saved me some time and effort because it was ready to put in the slow cooker immediately. If you can’t find that, then start by slicing the meat into thin strips. Then slice all of the vegetables into strips as well.
Add the meat and vegetables to the slow cooker and cover with the salsa. You can use more, but too much will make everything very soggy.
If you plan to mix your own fajita seasoning, then combine all of the seasoning ingredients together.
Sprinkle two tablespoons of fajita seasoning (whether homemade or from a packet) over everything in the slow cooker.
Stir all of the food in the slow cooker really well and cover. Cook on low for about 6-8 hours or high for 3-4 hours. I almost always do mine on the low setting as long as I have time.
Use tongs to put some of the meat and vegetables on a flour tortilla. You want to leave as much of the liquid off as possible. Otherwise, it makes your tortilla soggy and gross. Top with cheese, sour cream, cilantro, and any other desired toppings.
Originally Published On: August 22, 2018
Last Updated On: January 28, 2020
Slow Cooker Steak Fajitas
- 2 lbs beef
- 1 green bell pepper
- 1 red bell pepper
- 1 onion
- 10 oz salsa
- 2 tbsp fajita seasoning
- 6 flour tortilla shells
- fajita toppings such as cheese, sour cream, cilantro (as desired)
- Slice the beef and vegetables into thin slices
- Add meat, vegetables, and salsa to the slow cooker
- Sprinkle with fajita seasoning and stir to coat
- Cover and cook on low for 6-8 hours or high for 3-4 hours
- Use a slotted spoon or tongs to remove the meat and vegetables and build your fajitas on a tortilla shell
- Top with cheese, sour cream, cilantro, or any other desired toppings
All nutritional information is based on third-party calculations and should be considered estimates. Actual nutrition content will vary based on brands used, measuring methods, portion sizes, and more.
42 thoughts on “Slow Cooker Steak Fajitas with Homemade Fajita Seasoning”
I’ve been meaning to make fajitas since I found a packet of seasoning mix! Saving this recipe for future reference!
Fajitas make such a great dinner! Especially this one since the slow cooker makes it so easy.
These look absolutely delicious… I love fajitas! Will give this recipe a go – I’m sure my family will enjoy them.
They taste great, and are so easy to make since the slow cooker does all the work for you!
I love fajitas! This recipe looks so delicious!
Thanks, Elizabeth! It’s a good one, I hope you get a chance to try it out.
I love fajitas, and these look amazing! I’ve never made them myself, though, and I just may have to finally go out and get a slow cooker now!
I’ve made chicken fajitas on the stovetop before, but this is so much easier since it’s all done in the slow cooker!
I am so hungry right now! Your fajitas look amazing!
Thanks, Cris! The fajitas are so good, and so easy to make, too!
My husband and I also like our steaks differently and so I have always figured doing something like this would be out. But it’s good to know it’s possible!
I thought the same, but I wanted it so decided to give it a try. My husband said that, since the steak is so thin and it’s mixed with other flavors, he doesn’t notice that it’s “overcooked” to him.
First off, we LOVE fajitas!!! Second, I LOVE cooking with my crock-pot! Third, these look so yummy and easy – am betting I’ll try this before the school year gets too far along! 🙂
Three exact reasons I decided to make these and have made them quite a few times! Slow cooker recipes are great for school days since it’s ready when you are!
I love how easy fajitas are in the crock pot. It is one of my favorite things to make.
I like the crisp that making fajitas on the stovetop gives, but you can’t beat the convenience of the slow cooker!
These look so good! I am always looking for new crockpot meals. I might have to try this over the weekend.
We love using the slow cooker, it makes school nights so easy since the bulk of the work for dinner is already done before the kids get home.
With my crazy busy life I should be using my slow cooker. It is just sitting on my shelve. My family would love this delicious fajita meal for sure. Thank you for the recipe!
Oh man, you should definitely get that slow cooker out and put it to good use! It makes busy nights so much easier.
I totally use my crockpot whenever I can. These look like they would be so tasty!
The slow cooker is used often here, too. It just makes dinner so much easier!
I really love using the slow cooker as well. Mainly because it is such a time saver for me. These fajitas look amazing and I love that you have the homemade seasoning as well.
I save so much time with the slow cooker, too. It’s great for having dinner ready when we need it without having to cook after the kids are home from school.
These fajitas Look delicious! You just gave me another reason to finally get myself a slow cooker! I can’t even think of turning the oven on these days in my small apartment!!
You should definitely get a slow cooker. There are some great affordable options. Mine doesn’t have anything fancy, but it does what it needs to do and doesn’t heat up the kitchen with the oven running.
This looks delicious. Fajitas are a weekly staple in our house for sure! I’m going to have to try this out!
We have some type of fajita or similar dinner often, too. I hope you and your family enjoy this version of fajitas!
The food looks yummy! I really would want to try it myself this weekend.
It’s so easy to put together, as long as you have a slow cooker it’s a great weekend meal.
BOOKMARKING IT!!! Although i do have a slow cooker, I didn’t use it much this month!!! Will baptize it with your awesome recipe. yummmm
You should definitely pull that slow cooker out! There are so many delicious meals you can make with it.
I love fajitas but it was always chicken and I have never tried it with beef. I have some beef in the freezer, can try to make beef fajitas during the weekend.
I usually do chicken fajitas, too. But my husband loves a good steak now and then, so we went with beef this time for him.
These look great. However, I would try them with chicken because I know the beef industry is the biggest contributor to the world’s climate change issues.
I understand completely. We don’t eat a lot of beef here for a few reasons, that being one of them. But steak is my husband’s favorite, so we get some only now and then.
Oh yum! We love fajitas and I love our slow cooker haha! Its honestly the only way I cook!
I know, I love both too so it’s a perfect combination to make the fajitas in there!
Fajitas are such a great dinner for my family because the kids can customize them how they want. Adding this to next week’s meal plan!
I love meals like that, too. We all have such different tastes at my house, so customizable meals work so well.
Omg how yum!!!! Fajitas are legit my favorite food! I make them all the time. Might have to try your in on my favorite!
Well if they are your favorite, I hope this recipe lives up to that love of fajitas!