Slow Cooker 3-Ingredient Cajun Steak Packets

Are you looking for a delicious meal that tastes great, but you don’t feel like doing much cooking? If so, these slow cooker 3-ingredient cajun steak packets are perfect. You get all of the deliciousness of a restaurant steak meal with none of the work.

Because we’re using the slow cooker to cook foil packets, the meat cooks in its own juices which keeps it super tender. And the cajun seasoning creates a wonderful gravy right in the foil packet. There’s no standing over a stove and scrubbing dirty dishes.

If you’ve got hungry kids at home or if you just want an easy dinner that requires zero dishes, this easy tip will make life easier. Put it in, wrap it up and let the slow cooker do all the work for you.

Why You Will Love This Recipe

The thing I love most about this dinner is how easy it is to make. It doesn’t require any attention from you while it cooks, and it only takes about five minutes to prepare. All you have to do is throw the ingredients together in a foil packet, place it in your slow cooker and walk away. Then, when it’s done, you can just pull out your dinner and eat. It really couldn’t be any simpler than that.

Another great thing about this recipe is that even though it’s pretty inexpensive, it tastes amazing. Because the steak is sealed in foil, it steams in its own juices which makes the meat tender and delicious. Also, you won’t have any dishes to wash because everything is cooked in foil.

Ingredients You Will Need

All you need are three simple ingredients to make this tasty dinner:

Top Sirloin Steak

This is an ideal choice for this recipe because it’s fairly lean, but has enough fat in it to keep it moist in the slow cooker. When you cut the meat into uniform pieces, it cooks evenly and absorbs more seasoning. If you prefer to use a cheaper cut of meat, you can substitute beef chuck roast cubes, which will become very tender after cooking.

Cajun Seasoning

Store bought cajun seasoning is a great way to add flavor to your meal without having to measure out several different seasonings. This seasoning gives the perfect amount of garlicky, paprika flavors, plus a bit of heat that really gets into the meat. For less spicy palates, use a mild Creole blend, or combine smoked paprika, garlic powder, and a dash of thyme.

Frozen Bell Pepper and Onion Blend

I love using a bagged frozen pepper and onion combo to add some veggie flavors to the dish without doing any chopping! As the veggies cook in the packet, their natural sweetness seeps out into the Cajun spices and makes a nice little gravy for the steak. You could easily chop up some fresh bell peppers and sweet onions if you’d like, but it takes a bit longer.

How to Make It

Let’s get this super easy meal started!

Prep the Foil

Lay down 4 large sheets of heavy duty foil, about 12” each. Lightly coat the centers of the foil sheets with non-stick cooking spray.

Season the Ingredients

Add the steak pieces and pepper & onion mixture to a large bowl. Toss with the Cajun seasoning, mixing well so the steak and veggies are all coated with spices.

Assemble the Packets

Divide the meat and vegetable mixture between the centers of the 4 pieces of foil. Fold up the long edges of the foil to the center, fold over again, and fold in the sides to make the packet completely sealed.

Slow Cook to Perfection

Place the packets in the bottom of a slow cooker. Cover and cook on LOW for 4-6 hours, until the steak is very tender.

Practical Tips

Use heavy duty foil for these packets, since regular foil tears quite easily. The packets need to be well-sealed since the steam cooks the meat. Open the foil carefully, since there’s a lot of steam trapped inside. I often use a fork to puncture a hole in the foil and open the packet. 

Add a small pat of cold butter to each packet for an even richer flavor and a thick gravy. The butter will melt as it cooks and form a delicious, rich sauce for the beef along with all those Cajun seasonings. 

What to Serve it With

• Serve straight over a mound of hot rice to catch all the flavorful Cajun juice. 
• Serve over soft flour tortillas for quick and easy weeknight fajitas. 
• Enjoy with some creamy mashed potatoes for maximum comfort food vibes. 
• Serve over cauliflower rice for a low carb/keto option. 

Storage and Reheating

• Store any remaining steak and peppers in an airtight container in the refrigerator for up to 4 days. 
• To freeze, let the contents cool completely, place into a freezer safe bag, and freeze for up to 3 months. Defrost in the refrigerator overnight and then reheat. 
• Reheat portions in a warm skillet over medium heat or in the microwave for a minute or two until warm. 

Frequently Asked Questions

Can I cook this on HIGH instead?

You can cook these in a HIGH setting for 2 to 3 hours if needed, but for the most tender beef, LOW and slow is the way to go. 

Can I use chicken instead of steak?

Yes, boneless, skinless chicken breast works great in this recipe. The prep time and cooking time are the same.