Garlic Butter Steak Bites with Mashed Potatoes and Green Beans Recipe
If you’re looking for a cozy, crowd-pleasing meal that checks all the boxes for flavor, comfort, and wow factor, Garlic Butter Steak Bites with Mashed Potatoes and Green Beans is your new go-to. Packed with juicy steak bites seared to perfection, fluffy mashed potatoes, and crisp-tender green beans, this dish brings together everything you love about a hearty steakhouse dinner—without the fuss or the price tag. It’s a weeknight hero and a dinner party stunner, all in one skillet. Trust me, once you try Garlic Butter Steak Bites with Mashed Potatoes and Green Beans, it’ll become a staple in your kitchen.

Ingredients You’ll Need
The beauty of Garlic Butter Steak Bites with Mashed Potatoes and Green Beans is how a handful of simple ingredients come together to create something truly special. Each one plays a starring role, adding depth, texture, and color to your plate.
- Sirloin steak (1 1/2 pounds): Choose well-marbled steak for juicy, flavorful bites; ribeye or New York strip work beautifully as well.
- Olive oil (1 tablespoon): Perfect for searing the steak and sautéing veggies, adding a light, savory note.
- Unsalted butter (4 tablespoons + 1/4 cup): The backbone of that irresistible garlic butter sauce and creamy potatoes.
- Garlic (5 cloves, minced): Four cloves for the steak, one for the green beans—garlic brings warmth and depth throughout the dish.
- Fresh thyme or parsley (1 teaspoon, chopped): A sprinkle of herbs brightens the richness of the steak bites.
- Salt and black pepper: Essential for seasoning every component to perfection.
- Yukon gold potatoes (2 pounds, peeled and cubed): Their creamy texture makes the silkiest mashed potatoes.
- Whole milk (1/2 cup): Adds just the right amount of creaminess to the mash.
- Fresh green beans (12 ounces, trimmed): For a pop of color and freshness on the plate.
- Ice bath: Stops the green beans from overcooking and keeps their vibrant color.
How to Make Garlic Butter Steak Bites with Mashed Potatoes and Green Beans
Step 1: Make the Mashed Potatoes
Start by getting those potatoes going! Add your peeled and cubed Yukon golds to a big pot of salted water. Bring it to a gentle boil and let them cook for 15–18 minutes, until they’re fork-tender and practically falling apart. Drain well, return them to the pot, and mash with butter and milk until irresistibly smooth and creamy. Season with salt and pepper to taste, then cover to keep them warm and fluffy while you work on the rest.
Step 2: Prep and Blanch the Green Beans
While the potatoes are bubbling away, bring another pot of salted water to a boil. Drop in your trimmed green beans and blanch them for just 2–3 minutes—they should turn a vivid green and still have a bit of bite. Quickly transfer them to an ice bath to stop the cooking and lock in that gorgeous color. Drain and set aside; they’ll get their final sauté just before serving.
Step 3: Sauté the Green Beans
Right before dinnertime, heat a skillet over medium heat and add olive oil or butter. Toss in a clove of minced garlic, then add your blanched green beans. Sauté them for 2–3 minutes until fragrant, tender-crisp, and just starting to blister. Season with salt and pepper, and they’re ready to shine alongside your steak and potatoes.
Step 4: Sear the Steak Bites
Pat your steak cubes dry with paper towels—this step is key to getting that perfect golden-brown crust. Season generously with salt and pepper. Heat olive oil in a large skillet over medium-high heat. Add the steak in a single layer (work in batches to avoid overcrowding) and sear for 2–3 minutes per side, until deeply browned and as cooked as you like. The aroma alone will make your mouth water!
Step 5: Make the Garlic Butter Sauce
Reduce the heat to medium-low, then add unsalted butter and minced garlic to the skillet. As the butter melts and the garlic sizzles, toss the steak bites in this glorious mixture for 1–2 minutes. Finish with a sprinkle of fresh thyme or parsley for a burst of color and freshness. This is the magic that makes Garlic Butter Steak Bites with Mashed Potatoes and Green Beans totally unforgettable.
Step 6: Plate and Serve
Spoon those velvety mashed potatoes onto plates, pile the garlicky steak bites on top, and nestle the sautéed green beans alongside. Every bite is a celebration of texture and flavor, just waiting for you to dig in.
How to Serve Garlic Butter Steak Bites with Mashed Potatoes and Green Beans

Garnishes
A final flourish of fresh chopped parsley or thyme brings a lovely pop of color and a lift of herbal brightness. For extra decadence, drizzle any leftover garlic butter from the skillet right over the top. A sprinkle of flaky sea salt just before serving makes every bite of Garlic Butter Steak Bites with Mashed Potatoes and Green Beans sing.
Side Dishes
While this dish is a full meal on its own, you can pair it with a crisp salad, crusty bread, or even a simple tomato-cucumber medley for extra freshness. If you’re feeding a hungry crowd, consider a glass of bold red wine or a sparkling lemonade on the side to round out the feast.
Creative Ways to Present
For a fun twist, serve your Garlic Butter Steak Bites with Mashed Potatoes and Green Beans family-style on a big platter, letting everyone dig in together. Or, layer the mashed potatoes in individual ramekins, top with steak bites, and finish with green beans for an elegant dinner party presentation. Leftovers also make fantastic sliders or lunch bowls—just add a soft roll or bed of greens!
Make Ahead and Storage
Storing Leftovers
Leftover Garlic Butter Steak Bites with Mashed Potatoes and Green Beans keep beautifully in the fridge. Store each component in separate airtight containers for up to 3 days. This keeps everything tasting fresh and lets you reheat just what you need for a quick, satisfying meal.
Freezing
You can freeze the mashed potatoes and steak bites if you like, though the green beans are best enjoyed fresh. Place cooled mashed potatoes and steak bites into freezer-safe containers or bags. Label and freeze for up to 2 months. Thaw overnight in the fridge before reheating for best results.
Reheating
To reheat, warm the mashed potatoes gently in the microwave or on the stovetop with a splash of milk. Reheat the steak bites in a skillet over low heat with a dab of butter to keep them tender. Briefly sauté the green beans again to restore their snap. Assemble and enjoy like new!
FAQs
Can I use a different cut of steak for this recipe?
Absolutely! While sirloin is affordable and flavorful, you can swap in ribeye or New York strip for even more tenderness. Just cut the steak into evenly sized cubes for consistent cooking.
Is this dish gluten-free?
Yes, Garlic Butter Steak Bites with Mashed Potatoes and Green Beans is naturally gluten-free as long as you use gluten-free seasonings and check your labels on any packaged ingredients.
Can I make this dish dairy-free?
You can! Simply substitute vegan butter and your favorite plant-based milk for the mashed potatoes and garlic butter. The result will be just as creamy and satisfying.
What’s the best way to keep the steak bites tender?
Patting the steak dry before searing and not overcooking are key. Sear in a hot skillet, then finish in garlic butter just until warmed through for perfectly juicy steak bites every time.
Can I prep any components in advance?
Definitely! You can boil and mash the potatoes, blanch the green beans, and cube the steak earlier in the day. When it’s dinnertime, just reheat the potatoes, sauté the beans, and quickly sear the steak bites for a speedy meal.
Final Thoughts
There’s something so special about sitting down to a plate of Garlic Butter Steak Bites with Mashed Potatoes and Green Beans—it’s comfort food with a touch of elegance, and it’s sure to delight anyone lucky enough to join you at the table. Give it a try, and don’t be surprised when it becomes one of your most requested dinners!
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Garlic Butter Steak Bites with Mashed Potatoes and Green Beans Recipe
- Total Time: 50 minutes
- Yield: 4 servings 1x
- Diet: Vegetarian
Description
This Garlic Butter Steak Bites with Mashed Potatoes and Green Beans recipe offers a delicious and hearty meal featuring perfectly seared sirloin steak cubes tossed in garlic butter, creamy Yukon gold mashed potatoes, and tender-crisp garlic green beans. It’s a comforting American classic ideal for weeknight dinners or special occasions.
Ingredients
For the Steak Bites
- 1 1/2 pounds sirloin steak, cut into 1-inch cubes
- 1 tablespoon olive oil
- 4 tablespoons unsalted butter
- 4 cloves garlic, minced
- 1 teaspoon fresh thyme or parsley, chopped
- Salt and black pepper, to taste
For the Mashed Potatoes
- 2 pounds Yukon gold potatoes, peeled and cubed
- 1/2 cup whole milk
- 1/4 cup unsalted butter
- Salt and pepper, to taste
For the Green Beans
- 12 ounces fresh green beans, trimmed
- 1 tablespoon olive oil or butter
- 1 clove garlic, minced
- Salt and pepper, to taste
Instructions
- Prepare the Mashed Potatoes: Add the peeled and cubed Yukon gold potatoes to a large pot of salted water. Bring it to a boil and cook for 15-18 minutes or until the potatoes are fork-tender. Drain the water and return the potatoes to the pot. Add whole milk and unsalted butter, then mash the mixture until smooth and creamy. Season with salt and pepper to taste. Cover the pot to keep warm.
- Cook the Green Beans: While the potatoes are cooking, blanch the trimmed green beans in boiling salted water for 2-3 minutes until tender-crisp. Immediately transfer the beans to an ice bath to halt the cooking process. Drain and set aside. Just before serving, heat olive oil or butter in a skillet over medium heat. Add minced garlic and sauté for about 30 seconds until fragrant, then add the green beans and cook for 2-3 minutes until warmed through. Season with salt and pepper.
- Sear the Steak Bites: Pat the sirloin steak cubes dry with paper towels to ensure a good sear. Season them generously with salt and black pepper. Heat olive oil in a large skillet over medium-high heat. Add the steak cubes in a single layer, working in batches if necessary to avoid overcrowding. Cook each side for 2-3 minutes until browned and cooked to your preferred doneness.
- Toss Steak in Garlic Butter: Reduce the skillet heat to medium-low. Add unsalted butter and minced garlic to the pan, stirring to melt the butter and infuse it with garlic flavor. Toss the cooked steak bites in the garlic butter for 1-2 minutes to ensure they are well-coated and aromatic. Sprinkle with fresh thyme or parsley before removing from heat.
- Serve: Plate the garlic butter steak bites over the creamy mashed potatoes, and add the garlic sautéed green beans on the side. Serve immediately for the best flavor and texture.
Notes
- For extra tenderness and flavor, use ribeye or New York strip steak instead of sirloin.
- Add a splash of cream to the mashed potatoes for a richer, creamier texture.
- To save time, prep the potatoes and green beans while the steak is searing.
- Be sure not to overcrowd the pan when cooking steak bites to achieve a delicious sear.
- The recipe is naturally gluten-free, ensuring it fits well into gluten-free diets.
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Category: Main Course
- Method: Stovetop, Boiling
- Cuisine: American
Nutrition
- Serving Size: 1 plate
- Calories: 620
- Sugar: 4g
- Sodium: 360mg
- Fat: 36g
- Saturated Fat: 17g
- Unsaturated Fat: 16g
- Trans Fat: 0g
- Carbohydrates: 38g
- Fiber: 5g
- Protein: 38g
- Cholesterol: 140mg