You might want to make sure you're not absolutely starving when watching this. Check out the 10 most essential sandwiches for #NationalSandwichDay! 1. Grilled cheese 2. Ham and cheese 3. Bologna 4. Pastrami or corned beef on rye 5. BLT 6. Philly cheese steak 7. Lobster roll 8. Chicken parm 9. Pulled pork 10. Lamb gyro