A 3-ingredient protein peach filling topped with a oat, cinnamon, and honey crisp topping.
Preheat oven to 350F and place a 6.5” cast iron skillet or comparable baking dish on a baking sheet (to catch any drippings).
Open and drain the peaches before mixing with the protein powder and syrup. Stir until smooth and use a spatula to cut the slices in half to create smaller chunks (optional). Add the peach mixture to the skillet.
Mix the dry crisp topping ingredients together before adding the honey, vanilla, and butter. Stir until evenly mixed and crumble over the peach mixture.
Bake for 22-26 minutes or until the topping is golden brown.
Serve with ice cream, fat free whipped topping, or your choice of toppings.