1. Cook the Pasta

• Bring a large pot of salted water to a boil.

• Add the fettuccine and cook according to package directions until al dente.

• Drain and set aside.

2. Sear the Steak

• Heat olive oil in a large skillet over medium-high heat.

• Add steak strips and season with salt, black pepper, Cajun seasoning, smoked paprika, and garlic powder.

• Cook for 4–5 minutes, or until the steak is nicely browned.

• Remove from skillet and set aside.

3. Sauté Aromatics

• In the same skillet, melt the butter over medium heat.

• Add diced onion and cook for 2–3 minutes until softened.

• Stir in minced garlic and cook for another minute until fragrant.

4. Make the Creamy Sauce

• Stir in tomato paste and let it cook for 1 minute to deepen flavor.

• Slowly pour in the heavy cream, stirring constantly.

• Bring the mixture to a gentle simmer and cook for 2–3 minutes until slightly thickened.

5. Add Cheeses and Season

• Reduce heat to low.

• Stir in Parmesan and cheddar cheese until melted and smooth.

• Taste the sauce and adjust salt and pepper as needed.

6. Combine Pasta and Steak

• Return steak to the skillet, along with cooked fettuccine.

• Toss everything together until the pasta is fully coated and heated through.

7. Garnish and Serve

• Sprinkle with chopped parsley and optional red pepper flakes.

• Serve hot for a creamy, spicy, and hearty meal.