1.Bring A Large Pot Of Lightly Salted Water To A Boil. Add Pasta And Cook For 8 To 10 Minutes Or Until Al Dente; Drain. Keep Warm. 2.Meanwhile, Heat The Olive Oil And Butter In A Skillet Over Medium Heat. Add The Garlic; Cook And Stir Until Softened. Mix In The Eggplant. Let The Eggplant Cook For 5 Minutes Without Stirring. Then Stir And Cook Until Tender, About 5 More Minutes. 3.Mix In The Spinach And Season With Salt, And Pepper. Cook, Stirring Occasionally, For 3 Minutes. Stir In The Drained Pasta And Lemon Juice Along With 1/2 Cup Parmesan Cheese. Transfer To A Serving Dish And Top With Remaining Cheese And Cracked Black Pepper.