Bring water to a boil in a saucepan. Add rice mix and 1 tablespoon olive oil. Boil for 1 minute; cover and reduce heat. Simmer until water is absorbed, about 25 minutes.
Heat remaining olive oil in a skillet over medium-high heat. Add onion and saute until just soft, about 2 minutes. Add shrimp, green bell pepper, red bell pepper, and seafood seasoning. Cook, stirring occasionally, until shrimp are bright pink, about 5 minutes.
Mound rice on each plate; top with a portion of the pepper-shrimp mixture and a generous sprinkling of parsley.
