Cook Sausage According To Package Directions; Cut In Half Lengthwise And Into Thin Slices. In A Skillet, Saute Onion And Garlic In Olive Oil Until Tender. Add Peas. Combine The Cornstarch, Broth And Pepper Until Smooth; Stir Into Onion Mixture. Bring To A Boil; Cook And Stir For 2 Minutes Or Until Thickened. Stir In Sausage And Basil. Serve Over Pasta.