Salad with herring and tomatoes

Prepare an original, but very simple and easy dish. I was on a diet here, trying to lose a few extra pounds, looking for recipes for various low-calorie diet dishes. And as luck would have it, I always came across something terribly tasty and amazingly high in calories. But finally, in one magazine, in the recipe section, I came across a recipe called salad with herring and tomatoes.