Wash the tomatoes, quarter them, remove the seeds and cut the quarters into small cubes. Peel and finely dice the onions. Wash basil and thyme and dab dry. Cut the basil into strips, except for something to garnish.
Pluck the thyme leaves, also except for a little to garnish. Mix tomatoes, onions, herbs, lemon and olive oil. Season to taste with salt, pepper and vinegar. Keep cool until serving.
Wash parsley and chives and dab dry. Chop the parsley and cut the chives into fine rolls. Mix softened butter, herbs, lime zest and juice, some salt and pepper.
Cut salmon into 4 slices. Place aluminium foil in an ovenproof dish, oil lightly and place the salmon slices with the skin side on the foil. Season with pepper and spread herb butter on the salmon.
Cook under the preheated grill for 4-5 minutes until the salmon begins to brown. Arrange warm salmon in a deep dish or dish with the salsa. Serve garnished with herbs and lemon. Serve with fresh white bread.