Preheat oven to 400°F.
Spray a 9-inch deep dish pie pan with nonstick cooking spray and pour peaches in the pan.
In a small bowl, stir in cornstarch, vanilla, and 1 teaspoon cinnamon; pour the mixture over peaches.
In a large bowl, mix the remaining cinnamon, oats, brown sugar, flour, and butter with a fork until crumbly; sprinkle over peaches.
Bake for 20 to 25 minutes or until juices are thickened and bubbly, and topping is lightly browned. Serve while hot.
12 servings
½ cup
* The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.