To prepare the mixture for the stuffed hamburgers, add into a large bowl the minced beef along with the rest of the ingredients and mix thoroughly with your hands. If the mixture is too sticky, add some more breadcrumbs (or some water/olive oil if it is too dry) till the mix is solid.

Leave the mixture in the fridge to rest for 10-15 minutes.

Cut the feta cheese into small cubes and sprinkle with some dry oregano.

Knead the mixture into flat, thin, round burgers. At the center of half of the burgers place some of the stuffing and top them with another half-burger, squeezing on the edges till they stick together.

Place the burgers on a large baking tray and cook in preheated oven at 200C for 25 minutes. Flip them once to make sure both sides are nicely cooked and crusty.

Serve while still hot with a leafy salad sprinkled with some olive oil, sea salt and balsamic glaze. Enjoy!!!