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Garlic Butter Steak & Cheddar Potato Bake

This Garlic Butter Steak & Cheddar Potato Bake is pure comfort food! Juicy steak, creamy potatoes, and melted cheddar combine for an irresistible, hearty casserole.
Prep Time25 minutes
Cook Time55 minutes
Total Time1 hour 20 minutes
Course: Main Course
Cuisine: American
Keyword: Casserole, Cheddar, Comfort Food, Easy, Garlic Butter, Potatoes, Steak
Servings: 6 servings

Ingredients

  • Ribeye or sirloin steaks choose tender cuts
  • 4 large Russet potatoes peeled and thinly sliced about 1/8 inch thick
  • 2 cups Cheddar cheese shredded, sharp or extra-sharp
  • 6 tablespoons Butter real 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

  • Pat steaks dry and season both sides generously with salt, pepper, dried thyme, and rosemary.
  • Heat olive oil in a skillet over medium-high heat until shimmering.
  • Sear steaks for 3-4 minutes on each side until golden-brown crust forms but steak remains medium-rare.
  • Remove steaks from pan and let rest.
  • Reduce skillet heat to medium, add butter and minced garlic, stir until butter melts and garlic is fragrant, about 1-2 minutes, then remove from heat.
  • Peel and thinly slice russet potatoes about 1/8 inch thick.
  • In a large mixing bowl, toss potato slices with half of the garlic butter mixture, salt, pepper, and a sprinkle of thyme and rosemary.
  • Slice rested steaks into thin strips or bite-sized pieces.
  • In baking dish, layer half of the potatoes evenly.
  • Spread steak pieces over the potatoes, then sprinkle half of the shredded cheddar cheese on top.
  • Add remaining potato slices over the steak, drizzle remaining garlic butter, and top with remaining cheddar cheese.
  • Cover baking dish with aluminum foil and bake in preheated oven at 375°F (190°C) for 40 minutes.
  • Remove foil and bake for an additional 15 minutes until cheese is bubbly and golden and potatoes are tender.
  • Let bake rest for 5-10 minutes before serving to allow flavors to meld and dish to set.

Equipment

  • Oven-safe Baking Dish
  • Sharp Knife
  • Cutting Board
  • Skillet or frying pan
  • Mixing Bowl
  • Aluminum Foil

Notes

  • Use a mandoline slicer for perfectly even potato slices that cook evenly.
  • Assemble the bake the night before and refrigerate to save time on the day of serving.
  • Leftovers keep well refrigerated for 3 days and reheat gently to preserve moisture and texture.
  • Swap cheddar with mozzarella or Monterey Jack for a milder cheese flavor.
  • Freeze the assembled bake before cooking for up to 2 months; thaw overnight before baking.