Bring A Large Pot Of Lightly Salted Water To A Boil. Add The Penne Pasta, And Cook Until Tender, 8 To 10 Minutes. Meanwhile, Heat 1 Tablespoon Of Olive Oil In A Skillet Over Medium Heat. Place Bacon In The Skillet, And Cook Until Browned And Crisp. Add Garlic, And Cook For About 1 Minute. Stir In The Tomatoes, And Cook Until Heated Through. Place The Spinach Into A Colander, And Drain The Hot Pasta Over It So It Is Wilted. Transfer To A Large Serving Bowl, And Toss With The Remaining Olive Oil, And The Bacon And Tomato Mixture.