Cook your bacon until desired doneness, but you do want to be able to crumble it. Once cool enough to crumble crumble it all.
Dice tomato and cut up avocado into diced pieces.
In a bowl mix your avocados, half of the bacon and tomatoes and mix well. Add in a small amount of mayo if you like mayo with your BLTs. I add about a 1/2 tablespoon to mine.
Pull apart your lettuce so you have individual leaves.
If you are going to be serving them as wraps take each leaf and fill it with the BLT mixture and then sprinkle the left over bacon on the top.
If you are going to serve it party style, get a large dish and place a smaller bowl in the middle. Pour the mixture into the bowl and then top with the remaining bacon. Place lettuce leaves around the bowl in the dish.