Preheat The Oven'S Broiler And Set The Oven Rack At About 6 Inches From The Heat Source. Place The Sausage Links Onto A Broiler Pan, And Broil In The Preheated Oven Until The Sausage Is Crispy On The Outside And No Longer Pink On The Inside, About 8 Minutes. Turn The Sausage Once As It Cooks. Bring A Large Pot Of Lightly Salted Water To A Boil. Add The Bow-Tie Pasta, And Cook Until Al Dente, 8 To 10 Minutes. Drain And Return To The Pot Along With The Spinach; Keep Warm Over Medium-Low Heat. Heat The Olive Oil In A Separate Pot Over Medium Heat, And Stir In The Garlic, And Cook Until The Garlic Softens And The Aroma Mellows, About 3 Minutes. Add The Alfredo Sauce And Black Pepper, Then Bring To A Simmer Over Medium-High Heat. Cut The Cooked Sausage Into Bite-Sized Pieces, And Add To The Simmering Alfredo Sauce Along With The Pasta And Spinach. Stir Until The Pasta Is Hot And Well Coated With The Sauce.