Lightly brush peaches and avocado with oil, set aside.
On a grill pan, heat to medium heat, once hot place quartered peaches and avocado on grill and cook until heated through- about 5-8 minutes
In blender add all dressing ingredients except the oil.
Blend until combine, then while blender on low slowly add olive oil to thicken the dressing.
In a bowl add the spinach, avocado and peaches, set aside.
Dress the salad starting with just ¼ cup of the dressing and add more per your liking.
Serve as is or top with your favorite cheese or nuts.