Tomato Salad

By Emily Cookson | May 8, 2026 | No comments

Summer Tomato Salad

There is something about peak-summer tomatoes that stops me in my tracks every single time. I remember the first summer Aunt Anne handed me a perfectly ripe heirloom from her garden and said, “Emily, all it needs is a little oil and something sharp.” She was right — and that lesson has shaped how I cook with tomatoes ever since. This heirloom tomato salad is the purest expression of that philosophy. Barely dressed, bursting with color, and finished with a generous handful of fresh herbs, it is the kind of dish that celebrates the ingredient itself. I reach for it all summer long — alongside grilled mains, tucked next to a cucumber caprese salad for a full spread, or even just eaten with good crusty bread at the kitchen counter. If you love fresh, produce-forward sides like a marinated cucumber onion and tomato dish, this one belongs at your table too. Give it a try — I promise it will become your summer staple.

You Might Also Love

If fresh, vibrant salads are your thing, these are some of my favorites from the KitchenMomy kitchen.

Why You’ll Love This Tomato Salad

  • Peak flavor, zero cooking. Heirloom tomatoes are the star here — no heat needed, no technique to master. Their natural sweetness and acidity do all the work.
  • Ready in 15 minutes. A quick slice, a drizzle, a toss — that’s it. This is weeknight-friendly and dinner-party-worthy at the same time.
  • Bright, herbaceous finish. Fresh basil, dill, cilantro, or parsley — whatever you have — lifts every bite with fragrant, garden-fresh flavor.
  • Endlessly versatile. Serve it as a side, spoon it over grilled chicken or fish, pile it on toast with ricotta, or build a full summer spread around it.
  • Light and nourishing. A simple olive oil and red wine vinegar dressing keeps it clean, wholesome, and satisfying without any heaviness.

Ingredient Notes

  • Red onion — Thinly sliced into half-moons for a mild, crunchy bite that doesn’t overpower.
  • Heirloom tomatoes — Choose ripe, colorful varieties; their sweetness and acidity carry the whole dish.
  • Fresh herbs — Basil, dill, cilantro, or parsley — use whatever looks freshest at the market today.
  • Extra-virgin olive oil — A good-quality oil adds richness and rounds out the vinegar’s sharpness.
  • Red wine vinegar — Provides bright acidity that wakes up the tomatoes beautifully.
  • Kosher salt — Draws out the tomato juices, creating a light, flavorful dressing naturally.
  • Black pepper — Freshly ground for a warm, fragrant finish that complements the tomatoes.

How to Make Tomato Salad?

  • Soak the onion — Place sliced red onion in a bowl of cold water and soak for 5–10 minutes to mellow its sharp, raw bite.
  • Slice the tomatoes — While the onion soaks, core the heirloom tomatoes and cut into ½-inch-thick half-moon slices.
  • Drain the onion — Remove the onion from the water and pat thoroughly dry with a paper towel.
  • Combine tomatoes and onion — Layer sliced tomatoes and drained onion together in a wide, shallow serving bowl.
  • Add the herbs — Scatter the coarsely chopped fresh herbs evenly over the tomatoes and onion.
  • Dress the salad — Drizzle the 2 tablespoons of olive oil and 1 tablespoon of red wine vinegar over everything in an even stream.
  • Season and toss — Sprinkle ½ teaspoon kosher salt and ¼ teaspoon black pepper over the salad, then gently toss to coat.
  • Rest and serve — Let the salad sit for 5 minutes so the flavors meld, then serve immediately at room temperature.
Summer Tomato Salad (3)

Emily’s Expert Tips

  • Soak the red onion. A 5–10 minute cold water soak removes the raw bite and makes sliced red onion so much more pleasant in a fresh salad. I never skip this step — Aunt Anne taught me this trick years ago and it makes a real difference.
  • Don’t refrigerate before serving. Tomatoes lose their juicy, fragrant quality when chilled — always dress and serve this salad at room temperature for the fullest, most vibrant flavor.
  • Salt draws out the best juices. Once you toss the salad with kosher salt, those gorgeous tomato juices will pool at the bottom of the bowl — don’t discard them. That liquid is pure flavor; soak it up with bread or drizzle it back over the top.
  • Use a wide, shallow bowl. Crowding the tomatoes in a deep bowl bruises them. A wide, flat bowl keeps the slices intact and lets every layer show off those beautiful heirloom colors.
  • Mix your herb combination. I love a combination of basil and dill together — the sweetness of basil with the brightness of dill creates a more complex, rewarding flavor than a single herb alone.

Storage Tips

  • Best served fresh — Eat within 2 hours of dressing for peak texture and flavor.
  • Store components separately — If prepping ahead, refrigerate undressed tomatoes and onion for up to 1 day.
  • Dress right before serving — Combine oil, vinegar, salt, and herbs only when ready to eat.
  • Do not freeze — Tomatoes become watery and mushy after freezing.

Variations & Substitutions

  • Add feta — Crumble salty feta over the top for a creamy, tangy contrast; see our cucumber feta salad for inspiration.
  • Try balsamic — Swap red wine vinegar for balsamic glaze for a sweeter, richer dressing.
  • Add cucumber — Thinly sliced cucumber adds crunch and freshness; great for a cucumber tomato variation.
  • Use cherry tomatoes — Halved cherry or grape tomatoes work well when heirlooms aren’t in season.
  • Add avocado — Diced ripe avocado adds creaminess and richness without changing the flavor profile.
  • Make it spicy — Add a pinch of red pepper flakes or thin-sliced jalapeño for gentle heat.
Summer Tomato Salad (4)

What to Serve With Tomato Salad?

  • Grilled chicken — The bright, acidic salad cuts beautifully through juicy grilled chicken thighs.
  • Crusty bread — Thick slices of sourdough or ciabatta for soaking up those gorgeous tomato juices.
  • Grilled fish — A light, flaky white fish like halibut or branzino pairs effortlessly with fresh tomatoes.
  • Burrata — Tear creamy burrata over the top and serve as a stunning appetizer or light lunch.
  • A classic Italian salad — Round out a summer spread with a big Italian salad alongside.

Frequently Asked Questions

  • Can I make this tomato salad ahead of time? Prep the tomatoes and onion separately, then dress right before serving for best results.
  • What are the best tomatoes for this salad? Heirlooms are ideal — choose ripe ones with vibrant color and firm but yielding flesh.
  • Can I use regular tomatoes instead of heirloom? Yes — ripe beefsteak or vine tomatoes work well when heirlooms aren’t available.
  • How long does tomato salad last in the fridge? Dressed salad is best within 2 hours; undressed components keep up to 1 day.
  • Do I have to soak the red onion? No, but I recommend it — soaking removes harshness and makes the onion far more pleasant.
  • Can I add protein to make it a meal? Yes — grilled chicken, canned tuna, or sliced fresh mozzarella all work beautifully here.
Print

Tomato Salad

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

This heirloom tomato salad is a vibrant, no-cook summer side dressed in olive oil, red wine vinegar, and a generous handful of fresh herbs. Ready in 15 minutes, it lets peak-season tomatoes shine in every colorful, juicy bite.

  • Author: Emily Cookson
  • Prep Time: 15 minutes
  • Cook Time: 0 minutes
  • Total Time: 20 minutes
  • Yield: 4 servings
  • Category: Salads & Sides
  • Method: No Cook
  • Cuisine: American
  • Diet: Vegan

Ingredients

  • 1 small or 1/2 medium red onion, thinly sliced into half-moons
  • 1 1/2 pounds heirloom tomatoes (about 3 medium), cored and sliced into 1/2-inch-thick half-moons
  • 1/4 cup packed fresh herbs (basil, cilantro, dill, parsley, or a combination), coarsely chopped
  • 2 tablespoons extra-virgin olive oil
  • 1 tablespoon red wine vinegar
  • 1/2 teaspoon kosher salt
  • 1/4 teaspoon freshly ground black pepper

Instructions

  1. Place sliced red onion in a bowl of cold water and soak for 5–10 minutes to mellow its sharp, raw bite.
  2. While the onion soaks, core the heirloom tomatoes and cut into 1/2-inch-thick half-moon slices.
  3. Remove the onion from the water and pat thoroughly dry with a paper towel.
  4. Layer sliced tomatoes and drained onion together in a wide, shallow serving bowl.
  5. Scatter the coarsely chopped fresh herbs evenly over the tomatoes and onion.
  6. Drizzle the olive oil and red wine vinegar over everything in an even stream.
  7. Sprinkle kosher salt and black pepper over the salad, then gently toss to coat.
  8. Let the salad sit for 5 minutes so the flavors meld, then serve immediately at room temperature.

Notes

  • Soak the red onion in cold water for 5–10 minutes before using — it removes the harsh raw bite and makes the salad far more pleasant to eat.
  • Always serve this salad at room temperature; refrigerating tomatoes dulls their flavor and juicy texture.
  • Don’t discard the tomato juices that pool at the bottom — they are pure flavor. Spoon them back over the salad or soak them up with crusty bread.
  • Use a wide, shallow bowl to avoid bruising the tomato slices and to show off the beautiful heirloom colors.
  • For the best flavor, combine basil and dill together — their complementary profiles create a more complex, rewarding herb finish.
  • Dressed salad is best eaten within 2 hours. Store undressed tomatoes and onion separately in the fridge for up to 1 day.

Did you make this recipe?

Share a photo and tag us — we can’t wait to see what you’ve made!

You might also like these recipes

About the author

Holly Nilsson is the creator of Spend With Pennies, where she creates easy, comforting recipes made for real life. With a passion for nostalgic flavors and simplified techniques, Holly helps busy home cooks create delicious meals that always work. She is also the author of “Everyday Comfort,” which promises to inspire even more hearty, home-cooked meals.

See more posts by Laura

Follow Laura on social media:

Leave a Comment

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

Send this to a friend