Grandma's Truck N' Kitchen All Restaurants Previous Next Restaurant Category: Food Truck ProfilePhotosReviewsTitleNotificationsLocated in Seneca, Oregon. Open Thursday-Sunday 10am-2pm. Phone: 541-620-8863 Address: 108 Park AveSeneca, Oregon, 97873, United States Navigate Here! Leave a Review You must be logged in to post a comment. Grandma’s Truck N’ KitchenNo notifications found.