Creamy Steak Fettuccine

In a large pot of salted boiling water, cook pasta according to package directions until al dente. Drain and set aside. Coat both sides of steak with oil and season generously with salt and pepper. In a large skillet over medium-high heat, cook steak until your desired doneness, 4 minutes per side for medium rare. Transfer to a plate to let rest, 10 minutes, then thinly slice. Add cooked pasta to sauce and toss until coated, then add spinach and toss until wilted.   Top with sliced steak and drizzle with balsamic glaze.