Growing up in the Michigan, summertime was the luxurious season of eating from our garden. Every year, my mother lost control when planting the garden, and planted too many summer squash plants. With a bumper crop and neighbors who weren't squash fans, she found many ways to cook the abundant summertime vegetable. This recipe is my updated version on an old family favorite. —EdibleHumor
Separate egg whites into their own bowl, and buttermilk as well, respectively.
Dip disks into buttermilk, then egg whites, and finally panko crumbs/cheese mixture. Get aggressive with your dredging to make sure squash disks are at their panko-max.
Heat 3/4 cup of vegetable oil in a heavy skillet. When hot, carefully add squash disks. Turn when browned, about 3 minutes on each side. Remove and drain on plates covered in paper towel. Do in batches, and cover finished squash to keep warm. Add more oil if necessary.
Pulse first four ingredients in food processor. Stir in remaining ingredients. Pulse once or twice more (if you lose control and over-pulse, dressing will be green.)