It's been a long wait for vegetarian Macca's fans, but the fast food giant has announced a McVeggie burger will be hitting South Australian stores from Thursday.

The burger includes a crumb-coated mixed-vegetable patty with cheese, herbs and spices, and is available at participating stores from a limited time.

While the burger is McDonald's first vegetarian offering, it's far from the first for South Australian consumers.

Hungry Jacks last year introduced a vegan burger, while Grill'd on Monday took meat off the menu for an entire day.

The McVeggie burger will be available for a limited time only.