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steak and potatoes with alfredo sauce
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Alfredo Steak and Potato Bake Recipe

Steak and potato bake made with fluffy baked potatoes, garlic butter steak bites, cajun alfredo sauce, and melted white cheddar cheese.
Prep Time15 minutes
Cook Time1 hour 15 minutes
Total Time1 hour 30 minutes
Course: Main Course
Cuisine: American
Servings: 4 servings
Author: Mallory Austin

Ingredients

  • 4 large russet potatoes
  • avocado oil
  • sea salt
  • 2.5 cups sharp white cheddar about 2–3 tbsp per potato, plus more for topping
  • 4 tbsp butter
  • cracked black pepper
  • fresh parsley

Steak

  • 1.5 lbs steak sirloin or ribeye, cut into 1-inch pieces
  • 2 tbsp avocado oil
  • 2 tbsp Cajun seasoning
  • 2 tbsp butter
  • 2 cloves garlic minced

Alfredo Sauce

  • 3 tbsp butter
  • 1 tbsp minced garlic
  • 1 cup half and half
  • 1 cup heavy cream
  • 1 tbsp Cajun seasoning
  • salt and pepper to taste
  • 1 cup parmesan cheese grated or shredded

Instructions

  • Preheat oven to 425°F and line a baking sheet with parchment paper.
  • Rub potatoes with avocado oil and salt. Bake for 50–60 minutes until fork tender.
  • While potatoes are cooking, toss steak pieces with avocado oil and Cajun seasoning.
  • Heat a skillet over medium-high heat and sear steak undisturbed for 2 minutes. Flip and cook 1 minute.
  • Reduce heat to low, add 2 tbsp butter and garlic, toss steak to coat, then remove and tent with foil.
  • In the same pan, add remaining butter, half and half, heavy cream, Cajun seasoning, salt, and pepper.
  • Simmer for about 5 minutes, whisking frequently. Stir in parmesan until thickened.
  • When potatoes are cooked through, lift and drop potatoes onto the pan to loosen insides, slice open, and fluff with a fork.
  • Add 1 tbsp butter to each potato along with pepper, then spoon over 1/4 cup of alfredo sauce to each potato.
  • To each potato add 1/4 cup of cheddar cheese, top with steak bites (dividing equally among each), then spoon over remaining sauce, and another generous layer of cheesee; about 1-1.5 cups over the top of the pan.
  • Bake at 425°F for 20 minutes until bubbly. Broil if desired for extra color. Sprinkle parsley over the top before serving.

Notes

Use a hot pan for steak
This helps create a good sear and keeps the steak juicy.
Don’t overcook the steak
It will cook slightly more in the oven.
Sauce thickens as it sits
If needed, reheat gently to loosen before assembling.