In A Saucepan, Melt Butter Over Medium Heat. Stir In The Flour To Form A Smooth Paste. Gradually Stir In Milk. Bring To A Boil; Cook And Stir For 2 Minutes. Reduce Heat To Low; Add Worcestershire Sauce, Mustard, Salt, Pepper, Paprika And Cheese. Cook And Stir Until Cheese Is Melted. Place Toast On Plates; Top Each Pieces With Three Bacon Strips, Two Slices Of Tomato And Cheese Sauce.