Prepare Knorr Fiesta Sides according to package directions.
Brown ground beef in 12" nonstick skillet over medium-high heat; drain, if desired. Stir in Knorr Fiesta Sides
Arrange rice mixture on serving platter, then top with cheese, lettuce and tomato. Serve, if desired, topped with your favorite nacho toppings such as guacamole, sliced olives, sliced jalapeno peppers, or sour cream.