Using a pastry blender, mix together the butter, oats, flour, cinnamon and sugar. Once fully mixed, use a spoon to stir in coconut or nuts.
In a large bowl, carefully mix together peaches, flour and sugar. Divide evenly between 6 1-cup ramekins. Evenly sprinkle topping over the ramekins.
Place baking dish on a baking sheet or tray (lined½ with parchment in case of any spills).
Bake 25-30 minutes. It should be bubbling on the edges. Let cool for 5 minutes before serving (helps it thicken a bit).
Notes
To bake in one dish, add to a 1 ½ quart baking dish and bake for 35 minutes, or until bubbling. After 30 minutes, place a loose sheet of foil on top if topping is browned.