Weekly Global Wrap: McDonald's invest US$100m; Chipotle sued over portion size; Starbucks unveils Wicked merch

Here is a summary of the most interesting QSR news stories of the week globally.

McDonald's is investing $100 million, including $65 million for affected franchises, to recover from an E. coli outbreak linked to onions in its Quarter Pounders. More from AP News.

Chipotle sued over portion size. More from Reuters.

Starbucks unveils merchandise collaboration with Wicked movie release. More from Parade Magazine.