I mixed up some nice planting mixture from some chopped up leaves, compost, and the remains of last year's annuals pots.
Then I place the mixture into some pots that I have. I made holes with my finger in the soil mixture and place individual seedlings that I culled from my lettuce starts into the holes.
Finally, I watered the seedling with a little water in which I had soaked some willow branches. The willow tea promotes root growth.