Cook and drain fettuccine as directed on package.
Meanwhile, cut pork into 2x3/4x1/4-inch strips. In 12-inch nonstick skillet, heat oil over medium-high heat. Add pork, broccoli, green beans and bell pepper; cook 6 to 8 minutes, stirring frequently, until pork is no longer pink in center and vegetables are crisp-tender.
In small bowl, mix remaining ingredients until smooth. Stir into pork mixture. Cook 1 to 2 minutes, stirring constantly, until bubbly and thickened.
Stir cooked fettuccine into sauce mixture; cook, stirring occasionally, until thoroughly heated.