Cook and drain the pasta. Rinse with cool water.
In a large mixing bowl, toss together the drained pasta, peas, halved tomatoes and tuna. Mix well.
Stir in the sandwich spread dressing and combine to form the salad.
*Let chill for at least 2 hours before serving.
Enjoy Grammy's Summer Tuna Pasta Salad for brunch, lunch, snack, or dinner!