Step 1

Place peeled, cubed potatoes in a pot. Cover with cold water, add salt, and bring to a boil.

Step 2

Simmer the potatoes until tender, about 15 minutes. Drain and return to the pot.

Step 3

Add milk and butter to the potatoes, then mash until smooth. Season with salt and pepper to taste.

Step 4

Heat vegetable oil in a large skillet over medium-high heat.

Step 5

Add steak bites in batches to avoid overcrowding. Sear for 2-3 minutes per side until browned. Remove from the skillet and set aside.

Step 6

Reduce the skillet heat to medium. Add minced garlic and sauté until fragrant, about 1 minute.

Step 7

Stir in butter, thyme, and rosemary. Cook until the butter is melted and slightly browned.

Step 8

Return the steak bites to the skillet. Toss in the garlic butter and heat through for 1 minute. Season with additional salt and pepper if needed.

Step 9

Serve the steak bites over mashed potatoes and drizzle any remaining garlic butter from the skillet on top.