The "McVegan" is a meat-free burger at McDonald's. McDonald's Finland On Thursday, news broke that rocked the fast-food landscape: McDonald's is testing a vegan burger.

The test is a small one. The "McVegan" will only be sold at McDonald's in Tampere, Finland, Today reported. And, the burger will only be on sale from October 4 through November 21.

However, even a limited vegan test from the fast-food giant is earth-shattering news for fans of both plant-based food and fast food.

Some people in Finland have already taken McDonald's up on its vegan offer — and posted photos on social media.

So far, early reviews seem pretty positive.

Kävin mäkkärissä. Edellisestä kerrasta on tovi. McVegan on oikein toimiva tuote. #mcdonalds #mcvegan #tampere #vegan #hamburger A post shared by Tatu Chanth (@tatuchanth) on Oct 4, 2017 at 10:03am PDT Oct 4, 2017 at 10:03am PDT

"After boycotting McDonald's for 20+ years I had to try the new #mcvegan," one person wrote on Instagram, calling the burger "really good."

After boycotting McDonald's for 20+ years I had to try the new #mcvegan. And then there were #cinnamonrolls at the uni. Both really good. So hard being vegan, have to eat all the time 😂 🍔🍩🍟🍰🍕🍦 A post shared by Noora (@nooramariam) on Oct 4, 2017 at 5:06am PDT Oct 4, 2017 at 5:06am PDT

Hello, my name is McVegan! 👍 #mcvegan #lihatonlokakuu #sipsikaljavegaani A post shared by Taru R (@trmao) on Oct 5, 2017 at 12:28am PDT Oct 5, 2017 at 12:28am PDT

"Quite good to my taste," wrote another person who had picked up the McVegan in Tampere.

"The patty tastes like the Anamma patties that I don't like that much, so it could be better, but along the great other ingredients they make it the best fast food vegetarian burger that I've had."

The McVegan is also causing a major stir far outside of Finland.

—Good Food Institute (@GoodFoodInst) October 5, 2017

While a few people were skeptical, most vegetarians and vegans seemed excited that McDonald's is testing the burger — even if it's a small test.

While a vegan Big Mac is likely a long way off, the fast-food industry has become increasingly attuned to the needs of vegetarian and vegan customers. Taco Bell specifically has led to way, rolling out a American Vegetarian Association-certified menu in 2015.