Preheat the oven to 350°F and grease a 24 cup mini muffin tin very well.
Wrap the thawed spinach in a clean kitchen towel and squeeze out as much liquid as possible. The drier the spinach, the better the bites will hold together.
In a large bowl, whisk the eggs and cottage cheese together. Stir in the feta, parmesan, almond flour, green onions, dill, garlic, pepper, nutmeg and spinach until evenly combined.
Spoon the mixture into the muffin cups, filling each one to the top, and sprinkle with the sesame seeds.
Bake for 20 to 24 minutes, until the bites are puffed, golden on top and fully set in the center.
Cool in the pan for 10 minutes, then run a thin spatula around the edges to release them. Serve warm or at room temperature.