Preheat oven to 375℉. Line a large rimmed baking sheet with parchment paper.
Heat the olive oil in a medium skillet over medium-high heat. Add in the scallions and sauté for 1-2 minutes. Next, add in the spinach and garlic and sauté until just wilted-1 minute. Then remove from the burner, transfer to a paper towel lined plate and set aside.
In a large bowl, add in the eggs and beat them for 30 seconds. Toss in the cottage cheese and mix together until incorporated. Next, add in almond flour, coconut flour, baking powder, salt, pepper, spinach mixture, olives, mozzarella, feta and mix until combined. Then, use a large scooper and transfer about 1/4 cup to the baking sheet, OPTIONAL: Gently top each with a little more mozzarella or feta cheese. Bake for 22-25 minutes or until golden brown. Allow to set in a pan for 10 minutes and then transfer to a wire rack.