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Garlic Butter Steak & Cheddar Potato Bake – Hearty Comfort Food Casserole

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Garlic Butter Steak & Cheddar Potato Bake is a hearty comfort food casserole featuring tender seared steak, thinly sliced potatoes, melted cheddar, and fragrant garlic butter. Perfect for weeknight dinners or family meals.

  • Total Time: 1 hour 20 minutes
  • Yield: 6 servings

Ingredients

Scale
  • Ribeye or sirloin steaks, tender cuts
  • 4 large Russet potatoes, peeled and thinly sliced (about 1/8 inch)
  • 2 cups Cheddar cheese, shredded (sharp or extra-sharp)
  • 6 tablespoons butter
  • 4 cloves garlic, minced
  • 2 tablespoons olive oil
  • Salt and pepper, to taste
  • 1 teaspoon dried thyme, plus extra for seasoning
  • 1 teaspoon dried rosemary, plus extra for seasoning

Instructions

  1. Pat steaks dry and season with salt, pepper, dried thyme, and rosemary on both sides.
  2. Heat olive oil in a skillet over medium-high heat. Sear steaks 3–4 minutes per side until golden-brown crust forms, but steak remains medium-rare. Remove and let rest.
  3. Reduce skillet to medium, add butter and garlic, stir until butter melts and garlic is fragrant (1–2 minutes). Remove from heat.
  4. Toss potato slices with half of the garlic butter mixture, salt, pepper, and a sprinkle of thyme and rosemary.
  5. Slice rested steaks into thin strips or bite-sized pieces.
  6. Layer half of the potatoes in a baking dish. Spread steak pieces over potatoes and sprinkle half of the cheddar. Add remaining potato slices, drizzle remaining garlic butter, and top with remaining cheddar cheese.
  7. Cover with foil and bake at 375°F (190°C) for 40 minutes. Remove foil and bake an additional 15 minutes until cheese is bubbly, golden, and potatoes are tender.
  8. Let rest 5–10 minutes before serving to allow flavors to meld.

Notes

  • Use a mandoline slicer for even potato slices.
  • Assemble the bake the night before and refrigerate to save time.
  • Leftovers keep refrigerated for up to 3 days; reheat gently.
  • Swap cheddar with mozzarella or Monterey Jack for a milder cheese.
  • Freeze the assembled bake before cooking for up to 2 months; thaw overnight before baking.
  • Author: lily
  • Prep Time: 25 minutes
  • Cook Time: 55 minutes
  • Category: Main Course
  • Method: Baked
  • Cuisine: American