To assemble: Set a large platter up and arrange individual butter lettuce leaves side by side. Place a few slices of chicken on each lettuce leaf. Top with a spoonful of salsa and a drizzle of pesto.
I like to marinate my chicken the night before I cook. If you've run out of time, marinate at least a few hours, chilled.
CHEAT A LITTLE! Forgo the chicken marinating and cooking option and use store bought cubed chicken.