Cook your bacon in a skillet and drain. When it is cooled chop it and reserve. While the bacon is cooking make the dressing and clean the lettuce. Break of each leaf off the stem and either rinse them individually or swoosh all of them around in a large bowl of water then place on a kitchen towel to dry as you are preparing everything else. In a bowl large enough to hold all the ingredients including the chicken add sour cream, mayo, buttermilk, green onions, dill, onion salt, and black pepper to taste. Mix well.

Add the chicken and the bacon, mix again. Add the avocado and gently mix taking care to not mash up the avocado too much. Slice the tomato. Serve on a tray with the a spoon or tongs, lettuce cups, sliced tomato, and chicken salad so people can make their own.