In one bowl, add the chickpeas and with a fork, mash the chickpeas to desired consistency. I like to leave a few whole pieces/chunks for texture.
Add in the onion, pepper, spices, grated garlic, yogurt, tahini, lemon juice, pinch of salt and buffalo sauce and fold together with a spoon until evenly combined. If the mixture appears dry, add a tablespoon at a time of water until the mixture is to your liking. Taste and adjust the salt and pepper to your liking then set aside.
Prepare the slaw in a separate bowl and combine the tahini, yogurt, lemon juice, nutritional yeast, garlic, onion and remaining herbs. Whisk together until the sauce thickens then add 2 tbsp of water to thin it out slightly. Add in the cabbage, and celery and fold it into the dressing.
Now, assemble your sandwiches. Spread the chickpea mixture on a slice of bread then top with your slaw and any other vegetables you like. Top with the other slice of bread and enjoy.
