Tender, juicy steak bites coated in rich garlic butter and served over creamy mashed potatoes make this an easy comfort-food dinner the whole family will love. The steak is quickly seared for a beautiful browned exterior, then finished with butter, garlic, thyme, and rosemary for incredible flavor.
This recipe comes together quickly and is perfect for a cozy weeknight meal when you want something hearty without spending hours in the kitchen.
🛒 Ingredients
For the Steak Bites
- 1 lb (450 g) sirloin steak, cut into bite-sized pieces
- 2 tablespoons vegetable oil
- 4 cloves garlic, minced
- 3 tablespoons unsalted butter
- 1 teaspoon dried thyme
- 1 teaspoon dried rosemary
- Salt and pepper, to taste
For the Mashed Potatoes
- 2 lbs potatoes, peeled and cut into chunks
- 3 tablespoons butter
- ½ cup warm milk, plus more if needed
- Salt and black pepper, to taste
👩🍳 Instructions
1. Prepare the Potatoes
Place the peeled and chopped potatoes in a large pot and cover with cold, salted water. Bring to a boil and cook for about 15–20 minutes, or until the potatoes are fork-tender.
Drain well, then return them to the warm pot. Add the butter and warm milk and mash until smooth and creamy. Season with salt and pepper to taste. Keep warm while preparing the steak.
2. Prepare the Steak
Pat the steak pieces dry with paper towels. Season generously with salt, pepper, dried thyme, and rosemary.
3. Sear the Steak Bites
Heat the vegetable oil in a large skillet over medium-high heat. Once hot, add the steak pieces in a single layer.
Cook for about 2–3 minutes per side, depending on the size of the pieces and your preferred doneness. Avoid overcrowding the pan so the steak can brown properly.
4. Add the Garlic Butter
Reduce the heat to medium and add the butter. Once melted, stir in the minced garlic.
Cook for about 30–60 seconds, stirring constantly, until fragrant. Toss the steak bites through the garlic butter so every piece is coated.
5. Serve
Spoon the creamy mashed potatoes onto serving plates and pile the garlic butter steak bites on top. Drizzle any remaining garlic butter from the skillet over the steak and potatoes.
Serve immediately while everything is warm.
⭐ Tips for the Best Steak Bites
- Use sirloin: It cooks quickly and stays tender when seared properly.
- Dry the steak first: Removing excess moisture helps the meat develop a better crust.
- Don’t overcrowd the skillet: Cook in batches if necessary.
- Use high heat: A hot skillet gives the steak bites a delicious browned exterior.
- Add garlic near the end: Garlic can burn quickly, so adding it with the butter keeps the flavor rich without bitterness.
- Don’t overcook the steak: Bite-sized pieces cook very quickly.
🍽️ What to Serve With It
These steak bites are already served with creamy mashed potatoes, but you can add a simple vegetable on the side for a complete meal. Steamed broccoli, green beans, roasted asparagus, or a fresh green salad all pair beautifully with the rich garlic butter sauce.
🧊 Storage and Reheating
Store leftover steak bites and mashed potatoes separately in airtight containers in the refrigerator for up to 3 days.
Reheat the steak gently in a skillet over medium-low heat until warmed through. Add a small amount of butter if needed to refresh the sauce. Reheat the mashed potatoes with a splash of milk and stir until creamy again.
📋 Recipe Information
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: About 35 minutes
Servings: 4
Category: Dinner
Cuisine: American
❤️ Final Thoughts
Garlic Butter Steak Bites and Mash is the perfect combination of tender, savory steak and creamy potatoes. The garlic butter, thyme, and rosemary add plenty of flavor without requiring a complicated sauce.
It’s an easy, comforting dinner that’s just as good for a busy weeknight as it is for a relaxed weekend meal.