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Fans Call This the ‘Best Sandwich on Planet Earth’ So I Gave It a Try originally appeared on Parade.

There I was, scrolling through recipes (as one does when trying to decide what to eat for lunch while also procrastinating other responsibilities), when I stumbled across a recipe that was billed as the “best sandwich on planet Earth.” I don’t know about you, but if someone is going to make a claim that strong, I’m absolutely going to test it.

This sandwich, dubbed Kar’s Summer Sandwich by content creator Cortney LaCorte (@cheesegal), looked really tasty, but I was curious to know if it was as incredible as she promised. There was only one way to find out.

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The Perfect Balance of Tangy, Creamy and Fresh

LaCorte sets up this recipe in the caption of the video. “This 5-ingredient-has-no-official-name-sandwich is one that I’ve been making (and eating) my entire life,” she says. “My godmother, Kar, made it for me as a kid, and I haven’t stopped being obsessed ever since. Hope you love!”

The sandwich is a simple combination of creamy smashed avocado, juicy tomato slices soaked in sun-dried tomato dressing, salty Muenster cheese and the ever-essential swipe of mayo. Stack it all between slices of bread (any kind you love) and you’ve got something far greater than the sum of its parts.

This sandwich was so good, I made it three days in a row.

This sandwich was so good, I made it three days in a row. On day two, I toasted the bread and added some sliced onion for a little kick. By day three, it officially earned a spot in my regular rotation. It’s fresh. It’s flavorful. It’s messy in the best way, and it’s easy enough to throw together even when you’re starving and impatient.

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The secret to this sandwich is all in the details. The tomato slices aren’t just slapped on raw. They’re soaked in sun-dried tomato dressing, which gives them this almost marinated quality. It deepens their flavor and adds a tangy bite.

Then there’s the avocado. Smashed onto one slice of bread, it brings the kind of rich creaminess that pairs beautifully with both the acidity of the tomatoes and the saltiness of the Muenster cheese. On the other slice of bread, mayo adds even more richness—because honestly, when is mayo not a good idea on a sandwich?

Muenster cheese is mild but melts beautifully if you choose to toast it, and it’s got just enough stretch to make every bite feel a little extra satisfying. I seasoned the whole thing with salt and pepper before pressing the sandwich together, and even though the filling squished out a little, I wouldn’t change a thing. The messiness is part of the charm, after all.

When I added onion on day two, it brought a sharpness that balanced the richness perfectly. Toasting the bread helped hold everything together and gave it a satisfying crunch on the outside. Pro tip- toast the bread lightly because you still want it to be soft enough to bite through without everything spilling out immediately.

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This sandwich was messy, but absolutely delicious.

Tips For Making It Your Own

This sandwich is endlessly customizable, which is another reason I fell in love with it. Want more protein? Add a slice of turkey or a fried egg. Looking for more tang? Swap out the mayo for a herby aioli. I’ve even considered layering in a few arugula leaves for peppery bite or a little bacon for crunch.

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Not a fan of Muenster? No problem. Havarti, provolone or mozzarella would all work beautifully. Just make sure the cheese you pick complements the creaminess of the avocado and the acidity of the tomato dressing. For a little extra flavor boost, sprinkle in some everything bagel seasoning on the avocado.

You can also play with the bread. I used gluten-free sandwich bread and loved it both toasted and untoasted. Sourdough would add a nice tang, while a good ciabatta roll would really soak up the dressing. Just keep in mind that the juicier the tomato, the sturdier your bread needs to be unless you’re okay with a full-on fork-and-knife sandwich experience.

Whether you’re in need of a quick lunch and something that tastes like you really tried (even when you didn’t), this sandwich is a game-changer. Just don’t forget the napkin because it’s going to be messy.

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Fans Call This the ‘Best Sandwich on Planet Earth’ So I Gave It a Try first appeared on Parade on Jun 8, 2025

This story was originally reported by Parade on Jun 8, 2025, where it first appeared.