Chipotle desperately needs to make 3 changes to survive

• Chipotle's shares plummeted after a disappointing quarter.
• UBS laid out a game plan that the chain needs to execute.
• Initiatives include growing delivery, improving guest experience, and adding new menu items - which could include breakfast.

Chipotle's shares fell nearly 12% - nearing a five-year low - after missing expectations on Tuesday.

The company's revenue reached $1.13 billion in the quarter, falling short of the $1.14 billion estimate. Now, the fast-casual chain needs to make some major changes if it wants to survive.

In a note that called Chipotle's ongoing sales trends "sluggish," UBS analyst Dennis Geiger laid out exactly how the fast-casual chain hopes to survive.

Here are three key things that Chipotle needs to execute if it wants to turn business around: