1. Prepare the Steak and Seasoning: Setting the Stage for Flavor

1. Cut Steak: Cut the steak into 2-3 inch pieces, ensuring they are relatively uniform in size for even cooking.
2. Prepare Blackened Seasoning (if making): If making the homemade blackened seasoning, combine all the spices (smoked paprika, cayenne pepper, onion powder, garlic powder, black pepper, salt, thyme, and oregano) in a small bowl and whisk together.
3. Season Steak: Rub the steak pieces evenly with the avocado oil, then season generously on all sides with the blackened seasoning (or your preferred seasoning blend).
4. Rest: Allow the seasoned steak to rest for 10-15 minutes at room temperature. This allows the flavors to penetrate the meat and removes the chill from the fridge, promoting even cooking.

2. Prepare the Potatoes: The Foundation of Creamy Mash

1. Peel and Quarter Potatoes: Peel the russet potatoes and cut them into quarters.
2. Cold Water Soak (Optional): Place the quartered potatoes in a bowl of cold water for about 10 minutes. This helps remove excess starch, resulting in fluffier mashed potatoes.
3. Boil Potatoes: Drain the potatoes (if soaked) and transfer them to a large pot. Cover with cold, salted water. Bring the water to a boil over high heat, then reduce the heat to medium-low and simmer until the potatoes are fork-tender, about 15-20 minutes.  

3. Cook the Steak: Searing to Golden-Brown Perfection

1. Heat Skillet: While the potatoes are boiling, heat a large skillet (preferably cast iron) over medium-high heat. Add 2-3 tablespoons of avocado oil to the hot skillet.
2. Sear Steak: Add the seasoned steak pieces to the skillet in a single layer. Cook undisturbed for about 2 minutes, or until a golden-brown crust forms.
   • Tip: Don’t overcrowd the skillet. Sear the steak in batches if necessary to ensure proper browning.
3. Flip and Cook: Flip the steak pieces using tongs and cook for another 1-2 minutes on the other side to sear.
4. Reduce Heat and Finish: Reduce the heat to low and cook for another minute to ensure even cooking.
5. Remove and Rest: Remove the steak from the skillet and place it in a bowl. Tent the bowl with foil to keep the steak warm and allow the juices to redistribute.

4. Make the Garlic Butter (for Steak): Aromatic and Flavorful

1. Melt Butter: In the same skillet you used for the steak, melt 3 tablespoons of butter over medium-low heat.
2. Sauté Garlic: Add 1 tablespoon of minced garlic to the melted butter. Sauté for about 1 minute, or until fragrant, being careful not to burn the garlic.
3. Toss Steak: Return the cooked steak bites to the skillet with the garlic butter. Toss the steak to coat it evenly on all sides, cooking for another minute to infuse the flavors.
4. Remove and Rest: Remove the steak from the skillet and place it back in the bowl, tented with foil, to keep it warm and allow it to rest further.

5. Make the Parmesan Cream Sauce: Rich, Creamy, and Cheesy

1. Sauté Garlic: In the same skillet (no need to clean it), melt the remaining 2 tablespoons of butter over medium heat. Add the remaining minced garlic and sauté for about 1 minute until fragrant.
2. Add Heavy Cream: Slowly whisk in the heavy cream and bring the mixture to a gentle simmer.
3. Reduce: Allow the cream to simmer for 3-5 minutes, or until it slightly reduces and thickens. Whisk occasionally.
4. Add Red Pepper Flakes and Onions: Stir in the red pepper flakes (if using) and diced green onions.
5. Add Parmesan: Reduce the heat to low and gradually whisk in the grated Parmesan cheese until it’s melted and the sauce is smooth and creamy.
6. Season: Taste the sauce and adjust the salt and pepper as needed.

6. Mash the Potatoes: Creating a Creamy and Cheesy Side

1. Drain Potatoes: Once the potatoes are fork-tender, drain them well in a colander.
2. Return to Pot: Return the drained potatoes to the pot.
3. Add Butter and Cream: Add the melted butter and warmed half and half to the potatoes.
4. Mash: Mash the potatoes using a potato masher or an electric mixer until they are smooth and creamy.
5. Add Cheese and Seasonings: Stir in the shredded Monterey Jack cheese, garlic powder, salt, and pepper. Mix until the cheese is melted and everything is well combined.

7. Serve: Bringing it All Together

1. Plate Potatoes: Spoon a generous portion of the cheesy mashed potatoes onto each plate.
2. Top with Steak: Arrange the garlic butter steak bites over the mashed potatoes.
3. Drizzle with Sauce: Spoon the Parmesan cream sauce generously over the steak bites.
4. Garnish (Optional): Garnish with freshly chopped parsley, if desired.
5. Serve Immediately: Serve the Garlic Butter Steak Bites with Parmesan Cream Sauce and cheesy mashed potatoes immediately while hot and enjoy!