Discover the ultimate Baked Oatmeal Recipe – a wholesome, cozy breakfast with hearty oats, warm cinnamon, and customizable add-ins. Easy to make, perfect for meal prep or brunch. Gluten-free and vegan options included.

This Baked Oatmeal Recipe is a warm, comforting breakfast that’s both nutritious and delicious. With a soft, custard-like interior and a crispy topping, this cozy breakfast bursts of flavor from your favorite add-ins like berries, nuts, or chocolate, it’s a versatile dish that feels like a hug in a bowl. As a busy mom and home cook, I love how this baked oatmeal recipe comes together quickly using one bowl, one spoon, and one baking dish for one happy family! 🥰 It fills the kitchen with inviting aromas and keeps everyone satisfied. Whether it’s a weekday morning or a leisurely weekend brunch, this recipe is a family favorite that’s been perfected over years of tweaking!

If you’re looking for the best baked oatmeal recipe, this is it. It’s simple enough for beginners, endlessly customizable, and ideal for meal prep. The combination of rolled oats, milk, and eggs creates a hearty yet tender texture, while a touch of cinnamon and maple syrup adds just the right sweetness. Ready in under 45 minutes, it’s a healthy breakfast you’ll want to make again and again.

Why You’ll Love This Baked Oatmeal

• Wholesome and Filling: Packed with fiber-rich oats and protein from eggs, it keeps you full for hours.
• Customizable: Add fruits, nuts, or chocolate chips to suit your taste or use what’s in your pantry. Suggested modifications are included for allergies and dietary preferences, but make it your own!
• Meal Prep Friendly: Make it ahead, store, and reheat for quick breakfasts all week.
• Crowd-Pleaser: Perfect for family breakfasts, brunches, or potlucks—kids and adults love it!

Inspired by cozy mornings and my family’s love for hearty breakfasts, this recipe is a modern take on classic oatmeal, elevated for flavor and ease. Let’s make it.

Ingredients for Baked Oatmeal

Be sure to see the recipe card below for the full listing of ingredients, instructions, notes, and estimated nutritional information.

Here’s what you’ll need for this delicious baked oatmeal, along with the purpose of each ingredient and possible variations. I’ve included detailed explanations to help you understand why each component matters and how to adapt it if needed.

• Oats: Oats are the backbone of this baked oatmeal recipe. I use old-fashioned rolled oats as they provide a hearty, chewy texture and are packed with fiber to keep you full. They absorb the wet ingredients to create a cohesive, custard-like bake. Use certified gluten-free rolled oats for a gluten-free version. Avoid quick oats, as they become mushy or steel-cut oats, which require longer cooking times.
• Milk: Adds moisture and creaminess, helping the oats soften and bind during baking. It also contributes to the custard-like texture. Whole milk gives the richest flavor, but almond, oat, or soy milk work well for dairy-free options. Use unsweetened varieties to control sweetness. For a richer bake, try half-and-half.
• Eggs: Provides structure and a custardy texture, binding the ingredients together and adding protein for a more filling dish. For a vegan option or if you have an egg-allergy, replace with 1/2 cup unsweetened applesauce. Applesauce adds moisture and slight sweetness, though the texture may be slightly softer and less custardy.
• Maple Syrup: I use pure maple syrup for my baked oatmeal. I believe it has the best flavor and adds a natural sweetness. It gives a rich, caramel-like taste. You can also use honey for a lighter, yet slightly floral twist or brown sugar for a deeper molasses note. I’ve also used coconut sugar which offers a subtle tropical flavor. Adjust sweetness by reducing to 1/3 cup maple syrup for a less sweet version.
• Baking Powder: Acts as a leavening agent to give the oatmeal a slight rise, resulting in a lighter, less dense texture. Make sure that your baking powder if fresh.
• Melted Butter: Adds richness and moisture, ensuring the baked oatmeal isn’t dry and enhancing the overall flavor. Butter gives a classic taste, while coconut oil adds a subtle tropical note and is dairy-free.
• Cinnamon, Vanilla, and Salt: Each enhances and add depth of flavor to the final dish.
• Mix-Ins: I love to add mix-ins to my baked oatmeal. They create bursts of flavor in every bite! My favorite is to include fresh, dried, or even frozen berries or other fruits for flavor, texture, and fiber! You can also use chocolate chips or nut butter for different flavor and textures.

Recipe Tips and Variations

• Room Temperature Ingredients: Ensure eggs and milk are at room temperature for smoother mixing.
• Gluten-Free Option: Use certified gluten-free oats and double-check all other ingredients.
• Dairy-Free Option: Swap butter for coconut oil and use plant-based milk like almond or oat.
• Egg-Free Option: Use applesauce.
• Make it Sweeter: Increase maple syrup to 1/3 cup for a sweeter bake or sprinkle brown sugar on top before baking.
• Add Protein: Stir in a scoop of protein powder or serve with Greek yogurt for an extra protein boost.
• Fruit Variations: Try diced apples, peaches, or blueberries for seasonal twists.

Storage and Make-Ahead Instructions

• Refrigerator: Keep in the fridge for up to 5 days. Reheat individual portions in the microwave for 20–30 seconds.
• Freezing: Cool completely, wrap tightly in plastic wrap and foil, and freeze for up to 3 months. Thaw overnight in the fridge and reheat in a 300°F oven for 10–15 minutes.

Frequently Asked Questions

If you try this baked oatmeal recipe, I’d love to hear how it turns out—leave a comment below or tag me on social media! For more cozy breakfast ideas, check out my Sour Cream Coffee Cake, Cinnamon Apple Muffins, or my Blueberry Muffins. Happy baking!

Enjoy!
Robyn xo