Cost information for the following is not included. Normally this is because the quantity or ingredient is unknown
2 lb Medium-sized sweet potatoes trimmed, peeled,
  cut into 1/8"-thick slices
  (or possibly 1/4 tspn dry thyme)
1 x strip Orange zest - (abt 1/2" by 2")
  Salt to taste
  Freshly-grnd black pepper to taste