Place tomatoes and butter in a small saucepan and bring to a simmer.

Preheat a small frying pan or skillet on a super high heat. Sprinkle a very fine layer of salt over the base of the pan. You’ll need a little less than a teaspoon.

Divide meat into two and shape into burger patties. Sear for 3-4 minutes on each side or until cooked to your liking.

Combine lemon juice with 2 tablespoons extra virgin olive oil in a bowl. Season. Toss in leaves to just coat.

Taste and season the sauce, remembering that the burgers will be quite salty. Serve burgers topped with sauce and salad on the side.