This is the greek seasoning and the sumac that I prefer to use and have shared on my amazon page in case you don't find it in your store.
You can use store-bough hummus OR if you're feeling adventurous, try my easy Instant Pot Hummus Recipe!
I prefer to shred my own cabbage using this mandolin, but store bought is also fine! This dish is also delicious served over cauliflower rice or white rice.
If you have whole peperoncini peppers, cut off the stem end with kitchen shears or a knife, use your finger to scoop out the seeds from each pepper, then cut them into slices with the kitchen shears. You can also use a knife, but this is much easier with kitchen shears!