Southern Shrimp Smorgasbord - It's Suppertime with Matty Matheson Shrimp Po Boy, Shrimp n Grits & Shrimp Louie, a combo that’s anything but shrimpy. Let Matty Matheson take your passion for shrimp to new heights with this three-way of gastronomic pleasure: Shrimp Po Boy, Shrimp ‘n Grits and Shrimp Louie.