In A Large Skillet, Brown Sausage Links Over Medium Heat. Cut Into 1/2-Inch Slices; Place In A Slow Cooker. Stir In The Peppers, Onion, Tomato Sauce And Pepper. Cover And Cook On Low For 8 Hours Or Until Sausage Is No Longer Pink And Vegetables Are Tender. Use A Slotted Spoon To Serve On Buns.