Prepare Chickpeas:
Drain and rinse 1 can of chickpeas or cook dried ones. Mash them in a large mixing bowl, leaving some whole for texture.

Make the Dressing:
In a small bowl, mix 1/2 cup mayonnaise, 1 tbsp Dijon mustard, 1 tbsp lemon juice, 1/2 tsp garlic powder, 1/4 tsp salt, and 1/4 tsp pepper.

Add Veggies:
Dice 1/2 cup celery, 1/4 cup red onion, and 2-3 pickles. Add them to the chickpeas.

Combine:
Stir the dressing into the chickpea mixture until everything is well combined.

Optional Add-ins:
Add parsley, dill, avocado, or any other toppings you like.

Assemble:
Spread the chickpea salad on 2 slices of bread. Add lettuce or spinach if desired.

Serve:
Top with the second slice of bread, cut, and serve!