I used pumpernickel and whole wheat flat bagels, but any kind works here. Slice the bagels in half and then cut them into large chunks. Toast the chunks in your mini toaster oven for 10 minutes or until they get crispy.
In a salad bowl, whisk together the dressing ingredients. Taste and adjust if necessary.
To the same bowl, add in the tomatoes, cucumber, onion, olives, dill and feta. Toss it all to coat. Let this sit for 20 minutes.
In a rimmed plate, place 1/4 of the bagel pieces on the bottom. Top with your salad and make sure you add in the juice from the bottom of the bowl to your plate. I like to let this sit for 10 minutes for the bagel pieces to soak up the salad juices fully.