Add the eggs, herbs, garlic powder, salt and pepper to a large bowl and beat lightly to combine. You don't want to beat the eggs too vigorously as this will cause your frittata to puff up like a soufflé!
Stir in the spring onions, grated Parmesan and most of the cottage cheese. Finally, stir in the chopped spinach and most of the smoked salmon.
Mist an 8 inch silicone cake tin with oil (the dish size will depend on the size of your air fryer - it should sit flat within the basket to cook evenly). Place in the air fryer basket and preheat for 3 minutes at 180°C / 360°F.
Pour the frittata mix into the pan. Top with dollops of cottage cheese, a few more pieces of smoked salmon and sprigs of fresh dill (this was purely for presentation purposes - you can mix all the ingredients together if preferred).
Spray the top with olive oil or other cooking spray and air fry 25-30 minutes, until the top is golden brown and the frittata is mostly set.
Carefully flip the frittata over onto a liner (or the insert of an 8inch loose-bottomed cake tin). Add to the air fryer basket and cook for a further 10-15 minutes, or until golden.
Rest for a few minutes before slicing and serve on its own or with a green salad.
