Finally! A Simple Sliced Tomato Onion Salad. It’s summer. Home-grown tomatoes and onions make a delicious salad.

This simple sliced tomato onion salad has a light vinaigrette that is perfect for summer. Beautiful platter by Elizabeth Krome, Quail Run Pottery.
A Simple Sliced Tomato Onion Salad makes a light side dish for any meal.
The tomatoes are starting to come in! That means it’s time for a Simple Sliced Tomato Onion Salad, right? There’s nothing like a good, home-grown tomato, is there? John Denver even sang a song about them because they are so amazing! This salad is topped with a simple vinaigrette (recipe included).
You can make this Simple Sliced Tomato Onion Salad in about 10 minutes, using any kind of tomato and any kind of onion. In this case, I used a big Beefsteak tomato and red onion. Vidalia onions are especially good in this dish because they are light and sweet.

Look at these amazing home-grown tomatoes, shown with a couple limes and a lemon. We don’t refrigerate our tomatoes. They taste so much better at room temperature.
The flavor of this salad is enhanced when you let it rest a little after dressing it. Lois thinks the salad is best at room temperature, but it’s also terrific after refrigerating it. And it holds up well, so you can save the leftovers in the refrigerator for a meal the second day—that is, if it isn’t gobbled up during the first serving!
What You Need
You’ll need a good Tomato Knife to slice the tomatoes real thin, but no other special tools are required. The key for the tomato knife is a good serrated edge. And a lovely platter or plate is essential for serving.
Simple Sliced Tomato and Onion Salad Recipe

Simple Sliced Tomato and Onion Salad
Ingredients
- 1 large Beefsteak tomato (or other tomato)
- 1/2 red onion (or another type of onion)
- 2 tablespoons balsamic vinegar
- 2 tablespoons olive oil
- Salt & pepper (to taste, perhaps 1/4 teaspoon salt and 1/8 teaspoon pepper)
- 1/4 cup fresh parsley (chopped fine)
Instructions
- Thinly slice the tomatoes and onions.
- Arrange the sliced tomatoes and onions on a small plate or platter, alternating the tomatoes and onions.
- Sprinkle with salt and pepper.
- Toss on the chopped parsley.
In a small bowl or measuring cup, mix the vinegar and oil until emulsified and drizzle over the salad.
- For best results, let the salad rest for 20 minutes, and serve at room temperature.
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Recipe Nutrition Information
This recipe is GF, DF, NF, SF, EF, CF (use sea salt), V, VG*
The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.

Nutrition Label for Simple Sliced Tomato Onion Salad with a Vinaigrette. Each serving is about 3 slices of tomato, 3 slices of onion and 2 tablespoons vinaigrette.
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Tomato Onion Salad with Balsamic Vinaigrette takes 10 minutes to make, 20 minutes resting. And it’s scrumptious with home grown tomatoes.

Simple Tomato Onion Salad takes 10 minutes to make, 20 minutes resting. And it’s scrumptious with home grown tomatoes.

Simple Tomato Onion Salad takes 10 minutes to make, 20 minutes resting. And it’s scrumptious.
*Allergen Key
GF = Gluten free | DF = Dairy free | NF = Nut free | SF = Soy free | EF = Egg free | CF = Corn free | V = Vegetarian | VG = Vegan
Note: If you have serious allergies or sensitivities, to be considered free of these allergens, you need to use products specifically marked “gluten free,” etc. There can be cross-contamination in facilities.
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