Slow Cooker Steak Bites (SO easy!)
These Slow Cooker Steak Bites are tender, juicy, and packed with rich, savory flavor. Perfect for busy nights, they practically melt in your mouth after slow cooking in a flavorful garlic butter sauce.
If you’re craving something hearty, flavorful, and totally easy to make, these Slow Cooker Steak Bites are about to become your new favorite recipe. Juicy, tender chunks of steak are slow-cooked in a rich, buttery garlic sauce until they practically melt in your mouth. With just a few ingredients and almost no prep, this recipe proves that big flavor doesn’t have to mean extra work and your entire family will love it.
Whether you’re serving this delicious meal of steak bites over mashed potatoes, rice, or with a side of veggies, they make the ultimate comfort food dinner. They’re perfect for busy weeknights, meal prep, or even game day — just set it and forget it! Once you try these garlic butter slow cooker steak bites, you’ll wonder why you ever cooked steak any other way.
Looking for other slow cooker recipes? Check out my Slow Cooker Creamy Lemon Chicken, Slow Cooker Beef Stew, and Slow Cooker BBQ Beef!
Why You'll Love This Recipe
- Super Easy - Just toss everything in the slow cooker — no fancy techniques or constant watching required.
- Melt-in-Your-Mouth Tender - The slow cooking makes even budget-friendly cuts of steak taste like restaurant-quality beef.
- Packed with Flavor - Garlic, butter, and a rich savory sauce infuse every bite with amazing flavor.
- Perfect for Busy Days - Set it, forget it, and come home to a warm, hearty dinner waiting for you.
- Family-Friendly - Everyone loves tender, flavorful steak — it’s a guaranteed crowd-pleaser that your whole family will love.
Ingredients
Sirloin Steak - this is a great cut of meat that is super tender when slowly cooked.
Yellow Onion and Fresh Garlic - steak and onions go together so well, and the onions and garlic add delicious flavor and depth to the sauce.
Gravy Mix - Au Jus Gravy Mix is a a great shortcut to adding savory flavor to these steak bites and creating a rich gravy.
Beef Broth - this, with the gravy mix, helps create the base of the gravy for the steak bites to cook in. Use unsalted beef stock or low sodium broth if you are sensitive to salt.
Butter - this is added to the top of the steak bites which ensures the meat is super tender. I use unsalted butter, as there is a decent amount of salt from the au jus gravy mix, beef broth, and additional salt, so if you use salted butter, be sure to reduce the amount of added salt.
Steak Seasoning - a mixture of spices, salt, and black pepper to enhance all of the flavors.
Cornstarch - a cornstarch slurry is used to thicken the gravy.
Please refer to the recipe card for the complete list of ingredients.
Variations
Different Cut of Meat - you can use stew meat or chuck roast instead of sirloin.
Add Fresh Herbs - this would be delicious with some fresh rosemary, fresh thyme, or parsley.
Add Mushrooms - sautéed mushrooms would be a delicious addition to these steak bites!
Add Worcestershire - Worcestershire sauce pairs perfectly with steak, and adding 1 tablespoon to the sauce would be yummy.
Garlic - if you don't have fresh garlic, you can use 1 teaspoon of garlic powder instead.
Step by Step Instructions
Photo 1. To a slow cooker, add the cubed sirloin, steak seasoning, garlic, and onion and toss to combine.
Photo 2. Sprinkle with the au jus packet and add the beef broth. Stir to combine.
Photo 3. Lay slices of the butter evenly on top of the steak. Cover the crockpot and cook on low for 6-8 hours or high for 3-4 hours.
Photo 4. Stir in 1 tablespoon of cornstarch dissolved in 2 tablespoons of water for the last 30 minutes. Serve with a garnish of fresh parsley (optional) and enjoy!
Expert Tips
Sear the Steak - if you want a nice brown appearance on the outside of the steak pieces, you can sear them in some oil on the stovetop. Just don't cook them all of the way through.
Storage - store any leftover steak bites in an airtight container the refrigerator for 2-3 days. Reheat leftovers in the microwave or stovetop.
Serving Suggestions - I love serving these steak bites with mashed potatoes and steamed green beans. Other ideas are to serve them over egg noodles, or with Parmesan Brussels sprouts, Parmesan Roasted Potatoes, and Strawberry Arugula Salad.
Don’t overcook - Even though it’s a slow cooker recipe, steak can dry out if cooked too long. Aim for low and slow for 6-7 hours, just until tender.
Cut steak evenly - Uniform pieces (about 1-inch cubes) cook more evenly and stay tender.
Freezer Meal - this is a great option for a freezer meal! Simply add all of the ingredients except the cornstarch to a freezer bag. Once ready to cook, thaw overnight in the refrigerator and cook according to recipe instructions.
Recipe FAQs
Chuck roast, sirloin tips, or stew meat work best. These cuts have enough marbling to stay juicy and tender after slow cooking. Avoid lean cuts like round steak, which can get tough.
No you don't need to. I never do, but browning the steak bites before slow cooking adds rich flavor and helps lock in the juices. If you’re short on time, you can skip this step...I can confirm they’ll still be delicious.
Yep! Simply prep all of the ingredients ahead of time and store it in the fridge (in the slow cooker insert if it fits). In the morning, just set it in the crock pot and go.
Yes that would work. The steak might not be quite as tender, but you can cook the steak and onions in olive oil in a large skillet over medium-high heat until browned and then add the remaining ingredients and cook over low heat for 10-15 minutes, stirring in the cornstarch slurry for the last couple of minutes.
Other Slow Cooker Recipes to Consider
If you make this recipe, please let me know! Leave a ⭐️⭐️⭐️⭐️⭐️ rating on this recipe below and leave a comment, or take a photo and tag me on Instagram with #greensnchocolate.
Slow Cooker Steak Bites
Ingredients
- 2.5-3 lbs sirloin steak cut into bite-sized pieces
- 1 teaspoon steak seasoning
- 3 cloves garlic minced
- 1 yellow onion sliced
- 1 ounce packet au jus gravy mix
- 1 cup beef broth
- 4 tablespoon butter sliced thinly
- 1 tablespoon cornstarch
Instructions
- Add the steak bites to the slow cooker and toss with steak seasoning, garlic, and onion.
- Sprinkle with gravy mix and beef broth and stir well to combine.
- Add slices of butter on top of the steak and onion mixture.
- Cover and cook on low for 6-7 hours or high for 3-4 hours.
- For the last 30 minutes, stir in 1 tablespoon of cornstarch that has been dissolved in 2 tablespoons of water.
- Serve and enjoy!
