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Lawson’s Classic Sandwiches Evolve! New Products Launching March 31 with Secret “Miso” Ingredient to Enhance Vegetable Flavors

Lawson, a major Japanese convenience store (Konbini) chain, has renewed its classic sandwich lineup starting March 31, 2026. The updated items are the long-beloved “Lettuce Sandwich” and “Vegetable Mixed Sandwich.” The most significant feature is the newly developed “special sauce” designed to bring out the maximum flavor of the vegetables.

Fresh sandwiches from Lawson, a major Japanese convenience store chain

An Amazing Crunchy Texture! The Evolved “Lettuce Sandwich”

Close-up of the renewed Lettuce Sandwich with fresh green leaves

The “Lettuce Sandwich,” popular among those who crave the texture of fresh vegetables, has undergone a further evolution.

  • Release Date: Tuesday, March 31, 2026
  • Price: Lawson standard price 343 yen (Approx. $2.29 USD, including tax)
  • Main Ingredients: Lettuce, ham, cheese
  • Flavor Highlight: Rich special sauce using “Miso”

While maintaining the juiciness and volume of the star ingredient, the lettuce, the saltiness of the ham and the creaminess of the cheese remain in perfect balance. The most surprising aspect of this renewal is the addition of “Miso” as a secret ingredient. While Miso might seem like an unexpected choice for a sandwich, it plays a crucial role in creating a deep richness and drawing out the natural sweetness of the vegetables. With one bite, you’ll hear the fresh crunch of the lettuce as the savory sauce gently envelops the ingredients—a luxurious experience that can be easily enjoyed at Lawson stores across Japan.

Enjoy Three Colorful Varieties at Once: “Vegetable Mixed Sandwich”

Three varieties of vegetable sandwiches in one package

For those who want to taste a variety of ingredients at once, the “Vegetable Mixed Sandwich” is highly recommended. This satisfying package offers three different flavor profiles.

  • Release Date: Tuesday, March 31, 2026
  • Price: Lawson standard price 354 yen (Approx. $2.36 USD, including tax)
  • Varieties: A 3-piece set featuring lettuce, tomato, and cucumber
  • Availability: Nationwide in Japan (*excluding some stores)

The newly developed sauce is also featured in this “Vegetable Mixed Sandwich.” The crunch of the lettuce, the refreshing acidity of the tomato, and the pleasant snap of the cucumber are all harmoniously tied together by the new Miso-infused sauce. The vibrant appearance provides great visual satisfaction, making it an excellent choice for a picnic lunch or a light dinner in Japan.

The Secret of the “Magic Sauce” for Delicious Vegetables

Lettuce and Vegetable Mixed Sandwiches renewed and tastier than ever!

Let’s delve into the “sauce,” which is the heart of this renewal. Lawson adopted a completely new approach to maximize the potential of the vegetables.

Until now, mayonnaise-based sauces were the mainstream for Japanese convenience store sandwiches. This time, however, Lawson has succeeded in adding “body” and “depth.” The secret Miso ingredient adds a touch of “Japanese Umami” to the Western-style sandwich, creating a lingering deliciousness.

Vegetables have a high water content and can often lose their flavor over time. However, this rich sauce coats the surface of the vegetables, ensuring that they do not feel watery until the very last bite. This attention to detail can be described as a “dedicated design” specifically for eating vegetables deliciously.

Start Your Healthy Spring Meals at Lawson in Japan

The “Lettuce Sandwich” and “Vegetable Mixed Sandwich” were renewed and released on March 31, 2026. Both highlight the quality of the ingredients while providing unprecedented satisfaction thanks to the newly developed Miso sauce.

If you are looking for the ultimate vegetable texture, the Lettuce Sandwich is the way to go. If you want to enjoy the harmony of diverse ingredients, the Vegetable Mixed Sandwich is the perfect choice. This lineup, which allows you to choose based on your mood, is a symbol of the convenience and quality unique to Japanese convenience stores.

When you visit Japan, be sure to stop by your local Lawson to taste this new evolution. An “unexpected vegetable experience” surely awaits you.

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