1Cook and drain linguine as directed on package.
2While linguine is cooking, heat oil in 10-inch skillet over medium-high heat. Add celery; cook 2 to 3 minutes, stirring frequently, until celery begins to soften. Add garlic; cook and stir 30 seconds.
3Stir in tomatoes, tuna and pepper. Cook 5 to 8 minutes, stirring frequently, until slightly thickened. Stir in olives. Cook 2 to 3 minutes or until hot. Serve sauce over linguine. Garnish with parsley.