In a clash of fast casual titans, Chipotle Mexican Grill is filing a lawsuit against Sweetgreen for trademark infringement. The salad purveyor recently released a meal offering called "Chipotle Chicken Burrito Bowl," which Chipotle said is being marketed in a "very similar" way as its own products and includes many of the same ingredients. 

In a clash of fast casual titans, Chipotle Mexican Grill is filing a lawsuit against Sweetgreen for trademark infringement. The salad purveyor recently released a meal offering called "Chipotle Chicken Burrito Bowl," which Chipotle said is being marketed in a "very similar" way as its own products and includes many of the same ingredients.&nbsp;