Remove the peas from the freezer. Peel and finely chop the onion and garlic. Wash the mint, shake it dry and roughly chop the leaves. Crumble the feta cheese.
Heat the olive oil in an ovenproof frying pan and saute the onion and garlic over a medium heat for 1 minute until slightly softened.
Add the cooked noodles to the pan and fry briefly.
Add the peas, salt and black pepper.
In a bowl, whisk the eggs and lightly season with salt and black pepper, then add to the noodles in the pan.
Sprinkle over the feta cheese and mint and transfer to a preheated oven at 350°F (325°F fan, gas 4).