Apple Cinnamon Protein Oat Bake

A protein-packed baked oatmeal casserole with apple, cinnamon, eggs and vanilla protein powder for a steady-energy start to your day.

  • 4–6 servings
  • Prep 10 min
  • Cook 35 min
  • Ready in 45 min
  • About 16 g protein
A square of baked oatmeal topped with a strawberry and blackberry, drizzled with syrup

Try this protein breakfast casserole for a great start to your day!

Easy Modifications

  • Use berries or peaches instead of apple.
  • Add chia or flax seeds for extra fiber.
  • Serve with Greek yogurt for even more protein.

Why this works: Starting the day with protein and fiber helps maintain steady energy, supports muscle strength, and keeps blood sugar more stable — especially important as we age.

— Kristen

Ingredients

Nutrition per serving

Calories
260
Protein
16 g

Serving: 1/5 of the bake. Estimated from USDA values for the ingredients listed, so your numbers will vary with the brands you use.

Instructions

  1. Preheat oven to 375°F.
  2. In a bowl, whisk milk, eggs, vanilla, and maple syrup.
  3. Stir in oats, protein powder, cinnamon, nutmeg, baking powder, and salt.
  4. Fold in diced apple and nuts.
  5. Pour into a lightly greased 8×8 baking dish.
  6. Bake 30–35 minutes until the center is set and the top is lightly golden.
  7. Let cool slightly before serving.
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