Drain black eyed peas and the corn through a colander; set aside.
In mixing bowl, whisk together the olive oil, lemon juice, fresh parsley, salt and pepper, until completely combined.
Add the brown rice, celery, onion, and bell pepper to the bowl with the dressing.
Toss to mix all ingredients.
Add the black eyed peas and corn.
Toss to mix all ingredients.
Serve chilled.