Peach Baked Oatmeal is the sweet-summery breakfast that tastes like peach cobbler but needs zero stovetop babysitting. The edges crisp like an oatmeal cookie while the center stays custardy and loaded with real peach chunks. Mix, bake, slice—no fancy skills required. Pair it with my Old-Fashioned Vanilla Baked Custard for a make-ahead brunch spread that feeds the whole crew.
Why You'll Love Peach Baked Oatmeal—Easy, Homemade Breakfast Casserole
Juicy peaches + cozy oats = Peach Baked Oatmeal. One bowl, 5-minute prep, 25-minute bake. Perfect for meal-prep, brunches, or lazy Sundays.
- One-bowl, beginner-friendly batter
- Uses fresh, frozen, or canned peaches—no waste
- Naturally sweetened; refined-sugar-free option
- Freezer-friendly squares for grab-and-go mornings
Ingredients for Peach Baked Oatmeal—Easy, Homemade Breakfast Casserole
Peaches: Fresh peak-season peaches give the best texture; frozen works year-round—just thaw and blot dry.Milk: Whole milk makes it extra custardy; swap in oat or soy for dairy-free.Sweetener: Maple keeps it vegan; sub brown sugar if that’s what’s in your pantry.
- Peaches: Fresh peak-season peaches give the best texture; frozen works year-round—just thaw and blot dry.
- Milk: Whole milk makes it extra custardy; swap in oat or soy for dairy-free.
- Sweetener: Maple keeps it vegan; sub brown sugar if that’s what’s in your pantry.
Ingredient Note: Full measurements for Peach Baked Oatmeal—Easy, Homemade Breakfast Casserole are listed in the printable recipe card below.
How to Make Peach Baked Oatmeal—Easy, Homemade Breakfast Casserole
Step 1 — Prep & Preheat
Preheat & Prep: Heat oven to 375 °F. Grease an 8-inch square or 9-inch pie plate.
Step 2 — Cook and Build Flavor
Mix Dry: In a large bowl whisk oats, baking powder, cinnamon, nutmeg, and salt.
Step 3 — Finish, Taste, and Adjust
Mix Wet: In a second bowl whisk milk, egg, maple syrup, melted butter, vanilla, and lemon zest.
Expert Tips for Peach Baked Oatmeal—Easy, Homemade Breakfast Casserole
- Toast oats on a dry skillet 3 min for nuttier flavor.
- Double the batch in a 9×13 pan; add 5 extra bake minutes.
- Use canned peaches packed in juice, not syrup, to avoid sogginess.
Peach Baked Oatmeal—Easy, Homemade Breakfast Casserole
Juicy peaches + cozy oats = Peach Baked Oatmeal. One bowl, 5-minute prep, 25-minute bake. Perfect for meal-prep, brunches, or lazy Sundays.
Ingredients
Main Ingredients
- 2 cups rolled oats (not instant)
- 1 cup diced peaches (fresh, frozen-thawed, or canned-drained)
- 1 cup milk (dairy or unsweetened almond)
- 1 large egg
- 1/4 cup maple syrup (or honey)
- 2 tbsp melted butter or coconut oil
- 1 tsp baking powder
- 1 tsp vanilla extract
- 1/2 tsp cinnamon
- 1/4 tsp salt
Seasonings & Flavor Boosters
- Pinch nutmeg (optional)
- Zest of 1/2 lemon for brightness
Optional Toppings
- Vanilla Greek yogurt
- Chopped pecans or almonds
- Drizzle of warm maple cream
Instructions
How to Make Peach Baked Oatmeal
- Preheat & Prep: Heat oven to 375 °F. Grease an 8-inch square or 9-inch pie plate.
- Mix Dry: In a large bowl whisk oats, baking powder, cinnamon, nutmeg, and salt.
- Mix Wet: In a second bowl whisk milk, egg, maple syrup, melted butter, vanilla, and lemon zest.
- Combine: Pour wet into dry; fold just until no dry streaks remain. Gently fold in peaches.
- Bake: Spread into pan; bake 22–26 min until the center barely jiggles and edges are light golden. Cool 5 min, slice into 4 hearty squares, add toppings, serve warm.
Nutrition (per serving)
Storage, Freezing & Reheating
- Fridge: Store in an airtight container for up to 3 days.
- Freezer: Not recommended (texture changes).
- Serve/Reheat: Best chilled or at room temperature.
Peach Baked Oatmeal—Easy, Homemade Breakfast Casserole FAQs
Yes—bake, cool, refrigerate overnight. Reheat squares as needed.
Apples, pears, or berries work; reduce liquid by 1 tbsp if using very juicy fruit.
Store covered in the fridge up to 4 days or freeze up to 2 months.
Over-baking or too many oats; measure accurately and pull it when the center still jiggles slightly.
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Before You Go
If you try this Peach Baked Oatmeal—Easy, Homemade Breakfast Casserole, I'd love for you to leave a rating or share how you customized it.