Slice the avocados lengthwise and remove pit. Scoop out the green avocado flesh and add to a mixing bowl.
Add the lemon juice and sprinkle some cayenne pepper in there, and “mash” the avocados up, using a fork. Make as smooth or as chunky as you like (Hint: do you like pureed or chunky soup?)!
Add the chopped tomatoes, cucumber and sweet white onion, and mix well.
Chop the hard end of the romaine head off so the leaves fall off intact.
Scoop some of the mixture onto each leaf, and top with some of the clover sprouts.
Roll each side of the leave in towards the middle, and enjoy!