In a bowl, gently mix the beef with salt and pepper to taste.
Form your patty and gently press your thumb in the center.
Refrigerate for at least 1 hour.
Warm your bbq grill or a pan until medium-hot.
For medium doneness, cook the burger 5 min on one side, without moving it. Flip to the other side and cook for 2 more mins.
While the meat rest for a couple of mins, brush the bun halves with extra virgin olive oil and toast until lightly crisp.
Place the salad into a bowl and gently season with balsamic reduction and salt and pepper to taste.
Spread generously the goat cheese on one half of the bun.
Add the roasted red peppers slice, onion rings and arrange the meat on top.
Add the balsamic arugula and close the burger with the other half of the bun.