Maybe you weren't wrong to feel excessively full after eating that Chipotle burrito.

Three customers have filed a class-action lawsuit in Los Angeles against Chipotle Mexican Grill (CMG.N), claiming they were tricked into believing the Tex-Mex restaurant chain's Chorizo Burrito was a healthier product. 

The plaintiffs claim they were misled by the nutritional value on Chipotle's menu board, which seemingly describes the spicy chicken and pork sausage burrito as consisting of just 300 calories.

Chipotle recently told a Twitter user that the “300 calories” on its signage only accounts for the chorizo’s nutritional value.

Chipotle, which has previously apologized to customers through its Twitter account over the issue, says it's working on making the menu panel's nutritional values clearer.

But the plaintiffs argue that Chipotle is willfully engaging in deceptive advertising, claiming the same calorie count can be found on multiple listings on the company's website.

If successful, the lawsuit could apply to Californians who have purchased food at a Chipotle restaurant in the state in the last four years.

The calorie count for Chipotle's flour tortilla alone is 300, according to the company's nutrition calculator. The restaurant’s chorizo burrito with black beans, white rice, tomato salsa and cheese is 1,055 calories.

Chipotle told BNN in a statement that though it wouldn't comment on legal action, it works hard to be transparent about its food ingredients.

"Generally speaking, we always work hard to maintain transparency about what is in our food, including the nutritional content, which is provided on an ingredient-by-ingredient basis," the company said.

The suit deals another blow to Chipotle, which has been struggling to bring back customers after a food safety crisis that included outbreaks of E. coli, salmonella and norovirus.