Cook Spaghetti According To Package Directions. Meanwhile, In A Large Skillet, Cook Beef Over Medium Heat For 2-3 Minutes Or Until Heated Through. Add The Vegetables, Gravy, Soy Sauce, Garlic Powder And Pepper. Bring To A Boil. Reduce Heat; Cover And Simmer For 8-10 Minutes Or Until Vegetables Are Crisp-Tender. Drain Spaghetti; Stir Into Beef Mixture.