01 -
Pat ribeye cubes dry with paper towels. Place steak pieces in a bowl, drizzle with olive oil, and sprinkle Cajun seasoning. Massage until thoroughly coated. Set aside.
02 -
Heat a large skillet or cast iron pan over high heat until nearly smoking. Arrange steak pieces in a single layer. Sear undisturbed 2–3 minutes for a deep crust. Flip and sear opposite side quickly. Remove steak from pan to prevent overcooking.
03 -
Reduce skillet heat to medium. Add 2 tablespoons butter and, when melted, stir in minced garlic. Sauté 1 minute until fragrant, scraping up browned bits.
04 -
Return seared steak and juices to skillet. Toss with garlic butter until evenly coated. Scatter chopped parsley over the top. Cover to keep warm and set aside.
05 -
Bring a pot of salted water to a boil. Add elbow macaroni and cook just until al dente following package instructions. Drain thoroughly but do not rinse.
06 -
In a separate saucepan over medium-low heat, melt 2 tablespoons unsalted butter. Sprinkle in flour gradually, whisking constantly for 2 minutes until fragrant and pale.
07 -
Stir in garlic powder and smoked paprika. Pour in milk slowly, whisking continuously until smooth with no lumps. Add heavy cream gently, whisking to incorporate.
08 -
With sauce hot but not boiling, stir in half of each cheese a handful at a time. Allow each addition to melt fully before adding more. Season to taste with salt and black pepper.
09 -
Add drained macaroni to the warm cheese sauce. Stir until pasta is thoroughly coated and no dry pasta remains.
10 -
To bake: Transfer half of mac and cheese to a greased baking dish. Layer with remaining shredded cheeses, then add the rest of the macaroni. Top with extra mozzarella and cheddar. Bake in a 175°C oven for 20 minutes until bubbling. Broil 3–4 minutes for a golden crust, monitoring closely to avoid burning. If serving directly, omit baking and serve immediately with steak bites.