deterministic toppings list returned

Output 

(bdapps)local ~/Desktop/dev/chipotle-meal-generator $ node index.js 
{ style: 'burrito',
  rice: 'white',
  beans: 'black',
  protein: 'half barbacoa half steak',
  veggies: false,
  toppings: 
   [ 'mild',
     'medium',
     'hot',
     'sour cream',
     'corn',
     'cheese',
     'guacamole',
     'lettuce' ],
  chips: false }

(bdapps)local ~/Desktop/dev/chipotle-meal-generator $ node index.js 
{ style: 'bowl',
  rice: 'none',
  beans: 'none',
  protein: 'barbacoa',
  veggies: false,
  toppings: 
   [ 'mild',
     'medium',
     'hot',
     'sour cream',
     'corn',
     'cheese',
     'guacamole',
     'lettuce' ],
  chips: true }

(bdapps)local ~/Desktop/dev/chipotle-meal-generator $ node index.js 
{ style: 'bowl',
  rice: 'brown',
  beans: 'both',
  protein: 'double chicken',
  veggies: true,
  toppings: 
   [ 'mild',
     'medium',
     'hot',
     'sour cream',
     'corn',
     'cheese',
     'guacamole',
     'lettuce' ],
  chips: false }