Mediterranean Healty Burger

Always when you want to buy mincemeat, select piece of fresh meet that you like and ask butcher to grind it for you. Every butcher will do it for you. That way you will know exactly what are you eating in your burger. I usually use beef. And here is my healthy burger for two person:
Ingredients:
Beef Mincemeat 300g
Egg
Onion (Chopped)
Bread Crumbs
Tomato
Feta Cheese
Green and Black Olives (sliced to rings)
Capers
Marinated Mushrooms (sliced)
Preparing:
Put mince in the bowl, add an egg, chopped onion, tbsp of bread crumbs and season it with salt and pepper. Mix everything well by your hands. If mixture is two moist add some more bread crumbs. Mixture should not be too dry or too wet. Split it in half and make two burgers of it using your hands. Heat the grilling pan. It is very important that your pan is warm when placing burgers in. Don't pour olive oil in the grilling pan this time oil the burgers thinly. It is very important that your pan is warm when placing burgers in. Grill your burgers on each side for couple of minutes.
Serving:
Place your burgers in the burger bun with mushrooms, feta cheese, olives, capers and tomato ring.
Whenever you can try to avoid french fries. If you really like it try not to exaggerate.