i would highly recommend 'the ranch' at mid-station next to the bungie the food and service is top notch from pizza, steaks, currys to toasties.
you can also go outside for pud and have a box of mini hot donuts what more can you want from a lunch time in pamps.
It has Spiders written on it outside, as it is owned by George Spider (yes that really is his name) who is a big name in Bulgaria. George is a great friend and is in there most days. He owns a lot of business properties in Pamporovo and Sunny Beach.