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High-Protein Apple Cinnamon Oat Bake (Meal Prep Friendly) - Warm, Cozy, and Satisfying

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Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Servings 6 servings

Ingredients
  

  • 2 cups old-fashioned rolled oats
  • 1 scoop (25–30 g) vanilla or unflavored whey or plant-based protein powder
  • 1 1/2 teaspoons ground cinnamon
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon fine salt
  • 2 medium apples, peeled if you prefer, diced small (about 2 cups)
  • 2 large eggs
  • 1 cup unsweetened almond milk (or dairy milk)
  • 1/2 cup plain Greek yogurt (or blended cottage cheese)
  • 2–3 tablespoons maple syrup or honey (adjust to taste)
  • 1 teaspoon vanilla extract
  • 2 tablespoons melted coconut oil or butter
  • Optional add-ins: 2 tablespoons ground flax or chia seeds, 1/4 cup chopped walnuts or pecans, handful of raisins

Instructions
 

  • Preheat and prep: Heat the oven to 350°F (175°C). Lightly grease an 8x8-inch baking dish or line with parchment.
  • Mix dry ingredients: In a large bowl, combine oats, protein powder, cinnamon, baking powder, and salt. Stir well to evenly distribute the protein powder.
  • Add apples and extras: Fold in the diced apples and any optional nuts, seeds, or raisins.
  • Whisk wet ingredients: In another bowl, whisk eggs, milk, Greek yogurt, maple syrup, vanilla, and melted oil until smooth.
  • Combine: Pour the wet mixture over the dry ingredients. Stir until everything is moistened. The batter will be thick.
  • Bake: Spread into the dish and smooth the top. Bake for 30–38 minutes, until set in the center and lightly golden on the edges.
  • Cool and slice: Let it cool for at least 10–15 minutes before slicing. It firms up as it rests.
  • Serve: Enjoy warm as is, or top with a dollop of yogurt, a drizzle of nut butter, or a splash of warm milk.