Bake in a 350 degree oven for 15 minutes, or until the chicken …

Sprinkling the remaining 1/3 cup of cheese over top of the avocados. Heat the butter in a skillet over medium heat, and brown the chicken lightly on both sides (do not over-brown the chicken breasts!). Place the chicken in a shallow baking dish, and top with the avocado slices. Remove from the oven and drizzle the avocados with the sriracha drizzle. Bake for 15 to 20 minutes, until the chicken is warmed through and the cheese is melted. Top with the grated cheese.

The avocados will get a little dark in color from the baking.