High-Protein Apple Cinnamon Baked Oats - a Healthy Breakfast Prep Recipe

Starting your day with a breakfast that is both satisfying and nourishing can be a challenge. Many quick options lack the protein and nutrients needed to keep you energized until lunch. This High-Protein Apple Cinnamon Baked Oats recipe solves that problem by combining wholesome ingredients with a comforting flavor profile. It’s perfect for meal prep, easy to make ahead, and packed with protein to fuel your morning.

A square slice of apple cinnamon baked oats with visible apple chunks and cinnamon on top

Grocery List - Ingredients

This recipe breaks down ingredients into three groups: dry, wet, and add-ins. This makes it easy to prepare and customize.

Dry Ingredients

• 2 cups rolled oats

• 1½ teaspoons cinnamon

• 1 teaspoon baking powder

• Pinch of salt

  
  

Wet Ingredients

• 1½ cups milk (choose dairy or unsweetened almond milk)

• ¾ cup plain Greek yogurt (2% or full-fat recommended for creaminess)

• 2 eggs

• 2–3 tablespoons maple syrup or honey (adjust sweetness to your taste)

• 1 teaspoon vanilla extract

  
  

Add-ins

• 1½ cups diced apple (Honeycrisp or Fuji apples work best for sweetness and texture)

• Optional: chopped walnuts or pecans for crunch

  
  

Step-by-Step Instructions

Follow these simple steps to create a delicious and protein-rich baked oats dish.

1. Preheat your oven to 375°F (190°C). Lightly grease an 8×8 inch baking dish to prevent sticking.

2. In a large bowl, combine all the dry ingredients: rolled oats, cinnamon, baking powder, and salt. Mix well.

3. In a separate bowl, whisk together the wet ingredients: milk, Greek yogurt, eggs, maple syrup or honey, and vanilla extract until smooth.

4. Pour the wet mixture into the dry ingredients and stir until just combined. Fold in the diced apples and nuts if using.

5. Transfer the batter to the prepared baking dish and spread evenly.

6. Bake uncovered for 35 to 40 minutes. The baked oats are done when the center is set and the top turns a light golden brown.

7. Let it cool for a few minutes before slicing into four servings.

   
   

Optional Protein Boosts

If you want to increase the protein content even more, try these additions:

• Stir in 1 to 2 scoops of vanilla protein powder into the wet ingredients.

• Add ¼ cup extra milk to keep the batter smooth when adding protein powder.

• Serve each slice with an extra spoonful of Greek yogurt on top for creaminess and protein.

  

How to Serve Your Baked Oats

This baked oats recipe is versatile and can be enjoyed in several ways:

• Warm it up and drizzle with extra maple syrup for sweetness.

• Top with a dollop of Greek yogurt and a sprinkle of cinnamon for added flavor and creaminess.

• Spread nut butter on top for extra healthy fats and staying power throughout the morning.

  
  

Storage Tips for Meal Prep

This recipe is ideal for preparing ahead and storing for busy mornings:

• Keep leftovers in the fridge for up to 5 days.

• Reheat individual slices in the microwave with a splash of milk to keep them moist.

• You can freeze slices individually and thaw them as needed for quick breakfasts.

  
  

Nutrition Facts and Protein Content

Each serving of this baked oats recipe provides approximately 18 to 22 grams of protein, depending on whether you add protein powder. This makes it a great choice for anyone looking to increase their protein intake without sacrificing flavor or convenience. The combination of oats, Greek yogurt, and eggs creates a balanced meal that supports muscle repair and keeps you full longer.