Prepare the Grilled Peach and Avocado Salsa:
Heat the grill to medium-high and spray with oil.
Cut the peaches in half, remove the pit, and lightly coat with olive oil or spray with cooking spray. Place peaches on the preheated grill cut-side down and grill until peaches have softened and have grill marks, but are not falling apart. Transfer peaches to a cutting board, chop into bite sizes, and place in a bowl.
Add the remaining ingredients for the salsa to the bowl with the grilled peaches, and toss to combine. Refrigerate until ready to use.