Toss tomatoes with 2 tablespoons oil, vinegar, and ½
Line a broiler pan or small 4-sided sheet pan with foil or
parchment paper and lightly oil foil.
Put fish, skin sides down, on pan and season with
teaspoon each of salt and pepper.
Whisk together mayonnaise, feta, herbs, and lemon juice and
spread over top of fish.
Put 2 lemon slices (slightly overlapping) on center of each
Drizzle lemon slices with remaining 2 teaspoons oil.
Broil fish 8 inches from heat until just cooked through, 14
to 16 minutes.
If topping browns before fish is cooked, cover loosely with
Serve fish with tomatoes.