Mix sour cream and mayonnaise with onion and garlic dip and let sit for a couple of hours.
Lay out how many cups you will be filling. The leaves will fit back to back if you cut off the extra stem piece. Chop the stems as you go and put them in a another bowl, add the mixed onion and garlic mix, croutons, parmesan cheese, and lemon juice. Mix all together and fill up the lettuce leaf cups. Any extra can be used as a dip for vegetables or crackers.
from Snowdon House - snowdonhouse.ca