Preheat the oven to 350 degrees.
Wash baked potatoes and poke holes with a fork or sharp knife in a few places outside each potato.
Bake for 1 hour.
If baking potatoes in a crock pot, follow the exact directions, but wrap the potatoes in aluminum foil and place them in the base of the crock pot.
Cook for 4 hours on low.
In the meantime, prepare the vegetables.
When the potatoes are done, allow them to cool to the touch before cutting them in half.
Using a spoon, remove the flesh from the inside of each potato, leaving about ¼ of the potato in the skins. Do not pierce through the skins.
Transfer the potato flesh into a bowl.
Prepare the tahini dressing by whisking all the ingredients together; set aside.
Add the hummus and half of the tahini dressing to the potatoes, and using an electric mixer, blend the hummus into the potatoes.
Add the diced red onion, baby bell peppers, and chopped kalamata olives.
Fold the vegetables into the potato mixture.
Place the empty potato skins onto a baking sheet or into a baking pan.
Spoon the potato mixture into the potato skins.
In a separate bowl, toss the chickpeas with the Za'atar seasoning.
Place the seasoned chickpeas in a single layer on the pan on a separate baking sheet prepared with parchment paper or a silicone baking mat.
Cook the chickpeas and the stuffed potatoes for 30 minutes.
Remove the chickpeas and cooked potatoes from the oven.
Transfer to a serving dish.
Spoon the roasted chickpeas onto the cooked stuffed potatoes, pushing he chickpeas into the top of the potato mixture.
Add the sliced tomato pieces onto the potatoes.
Drizzle the potatoes with the remaining tahini dressing.
Serve with a large green salad.