Baked Oatmeal Casserole with Berries and Cinnamon Bowl

I love baked oatmeal—it’s one of my favorite breakfasts. While I enjoy experimenting with different flavors, I always come back to this Simple Baked Oatmeal as my go-to. It’s mildly sweet with a warm vanilla note and serves as a flexible base you can top any way you like. It’s also a healthy choice: complex carbohydrates to keep you satisfied, chia seeds for omega-3s and fiber, and a bit of added protein for staying power.

simple baked oatmeal

What you need for this Simple Baked Oatmeal!

This recipe is truly simple—just seven ingredients and under 30 minutes from start to finish. It’s easy to double for meal prep, and once it’s baked you can top portions with nut or seed butter, fresh fruit, and a drizzle of honey or maple syrup for a delicious breakfast every day of the week.

  • Oats: Old-fashioned rolled oats work best for texture.
  • Vanilla protein powder: Adds flavor, sweetness, and a protein boost. I prefer a vegan vanilla powder, but use whatever you like.
  • Pure maple syrup: A natural liquid sweetener—swap honey or another liquid sweetener if preferred.
  • Almond milk: Unsweetened vanilla almond milk is my choice, but any milk will work.
  • Chia seeds: These add nutrition and absorb liquid to create a pleasing, tender texture.
  • Vanilla extract: For added flavor depth.
  • Baking powder: Provides a light lift as it bakes.
baked oats topped with peanut butter and fresh fruit

How to make this Simple Baked Oatmeal!

  1. Preheat the oven to 400°F (204°C).
  2. In a large bowl, mix the oats, vanilla protein powder, chia seeds, and baking powder until evenly combined.
  3. Add the almond milk, pure maple syrup, and vanilla extract, stirring until the mixture is uniform.
  4. Pour the batter into a greased 9×9-inch baking dish and spread it evenly.
  5. Bake for about 20 minutes, until set and lightly golden at the edges.
  6. Allow to cool briefly, then cut into squares and serve with your favorite toppings.

That’s it—simple, nutritious, and ready to enjoy.

an easy and healthy breakfast

Check out some of my other oatmeal recipes!

  • Veggie Packed Baked Oatmeal
  • Coconut Cashew Oatmeal Cups
  • Peanut Butter Banana Overnight Oats
  • Almond Butter Berry Overnight Oats

Connect with me!

If you try this Simple Baked Oatmeal, I’d love to see your version—tag @wellnessbykay on Instagram so I can check out and share your recreations.

simple baked oatmeal
baked oatmeal topped with fresh fruit
img 1867 6

Simple Baked Oatmeal

5 Stars 4 Stars 3 Stars 2 Stars 1 Star
5 from 2 reviews
  • Author: Kayla Berman
  • Prep Time: 10 Minutes
  • Cook Time: 20 Minutes
  • Total Time: 30 minutes
  • Yield: 4-5 Servings
  • Category: Breakfast
  • Method: Baked
  • Cuisine: American
Print Recipe

Description

Simple Baked Oatmeal is a quick, wholesome breakfast baked with seven basic ingredients. It balances mild sweetness and vanilla flavor and comes together fast—perfect for busy mornings or meal prep. Serve warm with nut butter, fresh fruit, or a drizzle of honey for extra flavor.


Ingredients

  • 2 cups oats
  • 1/4 cup vanilla protein powder
  • 2 cups almond milk
  • 2 tbsp pure maple syrup
  • 2 tsp baking powder
  • 2 tsp vanilla extract
  • 1 1/2 tbsp chia seeds

Instructions

  1. Preheat the oven to 400°F (204°C).
  2. In a large mixing bowl, combine oats, protein powder, chia seeds, and baking powder.
  3. Stir in almond milk, maple syrup, and vanilla extract until evenly mixed.
  4. Pour into a greased 9×9-inch baking dish and spread evenly.
  5. Bake for about 20 minutes, until set.
  6. Cool slightly, cut into squares, and serve with desired toppings.

Notes

  • Top with nut or seed butter, fresh fruit, and a drizzle of honey or maple syrup for best results.

Love this Recipe?

Leave a comment and a rating or tag @wellnessbykay on Instagram. I enjoy seeing your recreations and they help me continue creating recipes for the blog.