Wash the tomatoes, cucumber and red onion and place them in a fruit colander until drained well.
Now, cut the tomatoes into ½ inch slices and place them in a large serving bowl.
Cut the cucumber in same manner and place it in the bowl as well.
Peel an onion and cut it into equal halves. Pick one of the pieces and chop it into 1/2 inch pieces. Put everything in serving bowl.
Add in 1 tablespoon of fresh lemon rind and top it with 1/2 teaspoon of table salt. Mix the ingredients with a large fork until incorporated well and the salt dissolves completely.
Sprinkle 1/4 teaspoon of fresh ground pepper over the ingredients and toss it gently to coat.
Cover the bowl of Zesty Tomato Salad with a plastic wrapping sheet and set it aside for 20 minutes or place it in the refrigerator for some duration.
Toss lightly before serving and enjoy!