The cheaper way would be-

1) Basmati Rice 5lbs (approx. $5.00)

2) 2 whole chickens (approx. $ 7.00)

3) Butter or cooking oil (approx. $1.00)

4) Shan Biryani Masala mix (3 packets 99c each, approx. $3.00)( contains everything including salt)

5) Gas and/or electricity +water use ($x)

6) Human resource ($y)

7) carry out boxes, disposible forks and papers ($z)

Total= $16 + ($x+$y+$z)

if it fills 20 carry out boxes-

Total Income = 20X 2 = $40.00

Net Profit = $24.00 - ($x+$y+$z+applicable tax)

(assuming 0% depreciation on gas/electric stove and oven, used woks and oven pans, sink tap etc.)