Cook fettucini noodles according to package instructions until al dente. Drain and set aside.
Season steak with half the steak seasoning and rub it in well.
Heat 2 tablespoons of avocado oil in a skillet over medium-high heat. Sear steak for 3 to 4 minutes each side until desired doneness. Remove from heat and let rest.
4-5 tablespoons avocado oil, 2 tablespoons steak seasoning
Melt 3 tablespoons butter in same skillet. Add 5 cloves minced garlic and sauté for 1 to 2 minutes until fragrant.
6 tablespoons butter, 10 cloves garlic
Add steak back to skillet and toss with garlic butter, then remove and cover with foil.
6 tablespoons butter, 10 cloves garlic
In the same pan, add 4 tablespoons butter and remaining garlic. Sauté until fragrant.
6 tablespoons butter, 10 cloves garlic
Pour in heavy cream and half and half. Stir and simmer for 5 to 7 minutes until sauce thickens. Add remaining steak seasoning, cracked pepper, and green onions.
1.5 cups heavy cream, ¾ cup half and half, 2 tablespoons steak seasoning, ½ teaspoon freshly cracked pepper, 2 green onions
Add cooked fettucini noodles to sauce and toss to coat.
1 lb dry fettucini noodles
Slice steak into bite-sized pieces and stir into the sauce with noodles.
Add remaining butter and stir until melted for a rich and smooth sauce. Serve hot with extra green onions and parmesan if desired.
6 tablespoons butter, 2 green onions, 1 cup parmesan
Enjoy your garlic butter steak with parmesan Alfredo, ready in about 30 minutes!