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Garlic butter steak bites with parmesan cream sauce served over mashed potatoes on a marble table

Garlic Butter Steak Bites with Parmesan Cream Sauce

Juicy steak bites seared in garlic butter and smothered in a rich parmesan cream sauce, served over cheesy mashed potatoes. A hearty and comforting family meal that’s fast and full of flavor!
Prep Time 15 minutes
Cook Time 30 minutes
0 minutes
Total Time 45 minutes
Course Dinner, Main Dish
Cuisine American
Servings 4 servings

Equipment

  • Large Skillet
  • Pot
  • Mixing Bowls
  • Whisk
  • Potato Masher
  • Knife

Ingredients
  

Steak Bites

  • 2 pounds Steak filet, ribeye, or sirloin cut into 2–3 inch cubes
  • 5 tablespoons Avocado oil divided for searing

Parmesan Cream Sauce

  • 5 tablespoons Butter divided
  • 10 cloves Garlic minced and divided
  • 1.5 cups Heavy cream
  • 2 whole Green onions diced, both white and green parts
  • 1 teaspoon Red pepper flakes optional, adjust to taste
  • 2/3 cup Parmesan cheese shredded or grated

Cheesy Mashed Potatoes

  • 4 pounds Russet potatoes peeled and quartered
  • 1 cup Half and half warmed
  • 6 tablespoons Salted butter melted
  • 3/4 cup Monterey Jack cheese or mozzarella/pepper jack, shredded
  • 1 teaspoon Garlic powder
  • 3/4 teaspoon Salt
  • 1/2 teaspoon Black pepper to taste

Homemade Blackened Seasoning

  • 2 tablespoons Smoked paprika or regular paprika
  • 1 tablespoon Cayenne pepper
  • 1 tablespoon Onion powder
  • 2 teaspoons Garlic powder
  • 1 teaspoon Ground black pepper
  • 1 teaspoon Salt
  • 1/2 teaspoon Dried thyme
  • 1/2 teaspoon Dried oregano

Instructions
 

  • Cut steak into 2–3 inch cubes. Rub with avocado oil and coat evenly in blackened seasoning. Let sit at room temperature for 10–15 minutes.
  • Peel and quarter potatoes. Soak in cold water for 10 minutes, then drain and set aside.
  • Boil potatoes in salted water until fork-tender while cooking the steak.
  • Heat a skillet over medium-high with 2–3 tablespoons avocado oil. Sear steak bites in batches, 2 minutes undisturbed per side, flipping once. Reduce heat and cook 1 more minute. Remove to a bowl.
  • Add 3 tablespoons butter and 1 tablespoon minced garlic to the skillet. Sauté until fragrant, then return steak to coat in garlic butter. Remove and tent with foil.
  • In the same skillet, add 2 tablespoons butter and remaining garlic. Sauté until fragrant, then slowly whisk in heavy cream. Simmer 3–5 minutes to thicken.
  • Stir in red pepper flakes, scallions, and parmesan cheese. Whisk until smooth. Adjust salt and pepper to taste.
  • Drain cooked potatoes. Mash with melted butter and warmed half and half. Add cheese, garlic powder, salt, and pepper. Mix until smooth.
  • To serve, spoon mashed potatoes onto plates. Top with steak bites and drizzle with parmesan cream sauce. Garnish with parsley if desired.
Keyword comfort food, easy dinner, family meal, garlic butter steak, parmesan cream sauce, steak bites