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This summertime tomato sandwich is full of fresh summer tomatoes, creamy mayonnaise, fresh cracked pepper, and a sprinkling of kosher salt.

If there is one thing I love, it’s a summer tomato. They are so fresh, so sweet, and so incredibly perfect.
I grew up eating summertime tomato sandwiches for almost every single meal. They work for breakfast, make a great lunch, and are perfect for a quick dinner.
This version is my favorite way to make a tomato sandwich – sourdough bread, good mayonnaise, fresh sliced summer tomatoes, kosher salt, and freshly cracked black pepper sprinkled.
It might be the easiest sandwich you have ever seen, but TRUST ME when I say it’s one of the best.
If you have a local farm market around you, make sure to get your tomatoes right when they are fresh. Fresh tomatoes make the best sandwiches!

Ingredients needed
- Sourdough bread
- Sliced tomatoes
- Mayonnaise
- Kosher salt
- Black pepper
How to make
A tomato sandwich is not hard to make, but it needs the best ingredients to really shine!
For me, that means starting with deliciously toasted sourdough bread. Then, spread mayonnaise on one side of each slice of bread, pile it high with sliced tomatoes, and generously sprinkle with kosher salt and black pepper.
That’s it. How simple is that?

Substitutions and adaptations
If you want to add a little more oomph to a tomato sandwich, there are lots of ways.
- Add a slice of your favorite cheese for a small burst of protein.
- Additional veggies like sliced sweet onion, lettuce, or microgreens bring a nice crunch to the sandwich.
- Leave your bread untoasted for a softer sandwich.
- Use a homemade garlic or herb mayonnaise for additional flavor.
- Miracle Whip can be used in place of mayonnaise.
- Swap out mayo for hummus, cream cheese, or pesto.
Tips and Tricks
For a sandwich like this, use a high-quality mayonnaise such as Duke’s. You want the biggest and best flavors to really make this sandwich pop, so high quality is best.
If you can find them use a heirloom tomato like Cherokee Purple, German Pink, or Black Krim.
I like a really tangy sourdough bread for this recipe. Try my No Yeast Sourdough Bread!

More sandwich recipes
- Crispy Chicken Sandwich with Cabbage Apple Slaw
- Turkey and Cheese BLT Sandwich
- Asian Shrimp Po Boy Sandwich
- Pesto Tuna Baguette Sandwich
- Italian Mini Sub Sandwiches with Homemade Sub Sauce
Summertime Tomato Sandwich

Ingredients
- 2 slices sourdough bread
- 2 tablespoons mayonnaise
- 4 tomato slices
- Kosher salt, taste
- Black pepper, to taste
Instructions
- Toast sourdough bread and spread one side of each slice with mayonnaise.
- Add tomato slices to the mayonnaise side of one piece of the bread, sprinkle with desired amount of kosher salt and black pepper.
- Top with other slice of prepared bread and enjoy.
Notes













I love tomatoes so much I don’t even add the mayo in my sandwich! I think I could eat it every day and never get tired of it.
I add extra sharp cheddar cheese to my summer tomato sandwiches!
I am now a tomato lover and the simplicity of this sandwich makes it delicious on so many levels!
I had one today and it was amazing!
I love these simple samwiches. I sometimes add a slice or two of cucumber…yummo!
Add a slice of smoked gouda and put it in the panini press and it is my favorite sandwich. Love those fresh tomatoes!
I’m a very new tomato convert and lately the thought of a tomato sandwich certainly appeals to me. Mmm….