Cook rice in water as directed on package.
Meanwhile, heat oil in large skillet over medium-high heat until hot. Add beef; cook and stir until browned.
Add peas and carrot; cook and stir 4 to 5 minutes or until vegetables are tender.
Stir in cooked rice, onions and stir-fry sauce. Reduce heat to medium-low; cook 5 minutes or until thoroughly heated, stirring occasionally. Sprinkle with peanuts.