Preheat your oven to 375°F and lightly grease a small baking dish with the olive oil.
Grate the zucchini and yellow summer squash using a box grater, then place them in a clean kitchen towel and squeeze firmly to remove as much liquid as possible.
Finely dice the yellow onion and sauté in a small pan over medium heat until it becomes soft and translucent.
In a large mixing bowl, whisk together the eggs, egg whites, low-fat cottage cheese, almond flour, garlic powder, sea salt, and black pepper until smooth.
Stir the squeezed squash, sautéed onions, and chopped fresh parsley into the egg mixture until everything is evenly distributed.
Pour the mixture into the prepared baking dish and smooth the top with a spatula.
Bake for 35 to 40 minutes, or until the kugel is set in the center and the top has developed a lovely golden-brown color.
Allow the kugel to rest for 5 minutes before slicing and serving warm.