Parmesan Steak Bites & Roasted Garlic Mashed Potatoes
Get ready for juicy Parmesan Steak Bites and creamy Roasted Garlic Mashed Potatoes—an easy, flavor-packed recipe perfect for a cozy dinner or impressing guests!
Looking for a delicious and hearty dinner? This Parmesan Steak Bites with Roasted Garlic Mashed Potatoes recipe combines juicy, pan-seared steak bites coated in Parmesan with creamy, roasted garlic mashed potatoes. It’s a perfect dish for a cozy night in or an impressive meal for guests. Easy to make, yet packed with bold flavors, this will quickly become a go-to in your recipe collection.

What is in this dish?
- Roasted Garlic Mashed Potatoes: These are made with starchy potatoes like Russet or Yukon Gold, heavy cream, butter, and fresh herbs. Roasting garlic brings out its rich, sweet flavor. Simply slice off the top of the garlic bulb, drizzle with olive oil, wrap it in foil, and roast at 400°F for about 40 minutes. Once done, the cloves become soft and caramelized—ideal for mixing into the mashed potatoes.
- Garlic Butter Steak Bites: Tender steak cuts like ribeye, sirloin, or tenderloin are pan-seared to perfection in a cast iron skillet with garlic and butter. The result is a juicy, flavorful bite that’s crispy on the outside and tender inside.
- Garlic Parmesan Sauce: This creamy sauce starts with a roux of butter and flour, then heavy cream and Parmesan cheese are added. A dash of garlic powder finishes it off for an extra punch of flavor. It’s a great topping for both the steak bites and mashed potatoes.
Recipe Substitutions and Notes
- For the creamiest mashed potatoes, use Russet or Yukon Gold potatoes. These starchy varieties yield fluffy, smooth mashed potatoes.
- Opt for steak cuts with good marbling, like ribeye, sirloin, or tenderloin—these remain juicy when seared.
- Sautéed onions can add depth of flavor to your steak bites. Cook them in the butter before adding the steak.
- Mushrooms are a great addition too! I recommend button mushrooms, as they have a lighter flavor that won’t overpower the dish like portobello or Bella mushrooms might.
- Thin out the Garlic Parmesan Sauce with extra cream or half-and-half if it becomes too thick. Start by adding a tablespoon at a time until you reach your desired consistency.
Georgie’s Tips
Perfect Mashed Potatoes
Want fluffy mashed potatoes? Here are the key steps:
- Use starchy potatoes like Russet or Yukon Gold.
- Boil in salted water until just fork-tender, then drain thoroughly to avoid excess moisture.
- Warm your milk and butter before adding them to the mashed potatoes—this helps keep the potatoes smooth and creamy.
- Use a potato masher or ricer for a silky texture. Avoid blenders or food processors as they can make the potatoes gummy.
- Season generously with salt, pepper, and roasted garlic for added depth. Fresh herbs like thyme or parsley can take it up a notch!
This recipe is your ticket to a restaurant-quality dinner at home, combining juicy steak bites, creamy garlic-infused mashed potatoes, and a luscious Parmesan sauce. Whether it’s a weeknight treat or a weekend feast, this dish will leave everyone satisfied!
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Parmesan Steak Bites with Roasted Garlic Mashed Potatoes
Ingredients
Roasted Garlic Mashed Potatoes
- 2 pounds potatoes (Yukon Gold or Russet, peeled and cut into chunks)
- 1 whole head of garlic
- ½ tsp extra-virgin olive oil
- ½ cup unsalted butter (divided)
- ½ cup Heavy Whipping Cream (adjust to your preference)
- salt and pepper (to taste)
- fresh herbs like chives or parsley (optional)
Steak Bites
- 2 pounds sirloin steak (Cut into bite sized cubes)
- 3 tbsp unsalted butter
- 3 cloves garlic
Garlic Parmesan Sauce
- 1 tbsp unsalted butter
- 1 tbsp all-purpose flour
- 1 cup Heavy Whipping Cream
- ½ cup grated Parmesan cheese
- ¼ tsp garlic powder
- salt and pepper (to taste)
Instructions
- Preheat your oven to 400°F (200°C).
Roasted Garlic Mashed Potatoes
- Slice off the top of 1 whole head of garlic to expose the cloves. Drizzle with ½ tsp extra-virgin olive oil, wrap in aluminum foil, and roast for 35-40 minutes until soft and golden brown. After roasting, let the garlic cool slightly, then squeeze the roasted cloves out of their skins and set aside.
- In a large stockpot, add 6 cups of water and bring it to a boil. Add the potato chunks to the boiling water. Season the water with salt and cook the potatoes until tender, about 15-20 minutes. Once tender, drain the potatoes and return them to the pot.
- Add the roasted garlic, half of the butter (cut into chunks), and ½ cup Heavy Whipping Cream to the pot with the drained potatoes. Use a potato masher or electric mixer to mash the potatoes until smooth and creamy. If needed, adjust the consistency by adding more cream or milk. Melt the remaining butter and pour it over the mashed potatoes. Season with salt and pepper to taste. Garnish with fresh herbs like chives or parsley, if desired.
Steak Bites
- While the potatoes are boiling, heat a cast iron skillet over medium-high heat.
- Add 1 tbsp of butter and 3 cloves garlic to the pan.
- Once the butter is melted and garlic is fragrant, add 2 pounds sirloin steak bites to the skillet. Cook for 15-20 minutes, turning occasionally, until browned to your liking. Add the remaining 2 tbsp of butter to the skillet, then turn off the heat, allowing the steak to absorb the buttery garlic flavor.
Garlic Parmesan Sauce
- In a medium saucepan, melt 1 tbsp unsalted butter over medium heat. Add 1 tbsp all-purpose flour and whisk constantly for about 1 minute until a thick paste (roux) forms. Slowly pour in 1 cup Heavy Whipping Cream, whisking continuously to prevent lumps. Continue cooking and whisking until the sauce begins to thicken, about 3-4 minutes. Stir in ½ cup grated Parmesan cheese and ¼ tsp garlic powder. Continue stirring until the cheese is fully melted and the sauce is smooth. Taste the sauce and add salt and pepper as needed.
Notes
- For Creamy Mashed Potatoes: Warm the milk and butter before adding them to the potatoes for a smoother texture.
- Steak Doneness: Adjust cooking time for steak bites based on your preferred doneness—less time for rare, more for well done.
- Thick Sauce: If the Garlic Parmesan Sauce thickens too much, you can whisk in a bit more cream to reach your desired consistency.