This Apple Cinnamon Protein Oatmeal Bake combines old-fashioned oats, fresh apples, protein powder, cinnamon and Greek yogurt into a warm, make-ahead breakfast. It delivers classic apple-cinnamon flavor in convenient portions that can be prepared once and reheated throughout the week.
Why It Works for Meal Prep
Baked oatmeal is easy to portion, transport and reheat. Oats provide carbohydrate and fiber, while protein powder, Greek yogurt and eggs increase protein. Apples add natural sweetness and texture.
Ingredients
- 2 cups old-fashioned rolled oats
- 1 scoop (about 30 g) vanilla protein powder
- 1 tsp baking powder
- 1 tsp cinnamon
- 1/4 tsp nutmeg (optional)
- 1/4 tsp salt
- 1 1/2 cups unsweetened almond milk or milk of choice
- 3/4 cup plain Greek yogurt
- 2 large eggs
- 1/3 cup pure maple syrup or honey
- 1 tsp vanilla extract
- 2 cups peeled, diced apples
Step-by-Step Instructions
1. Prepare
Preheat oven to 350°F (175°C). Lightly grease a 9×9-inch baking dish and dice the apples.
2. Mix Wet Ingredients
Whisk milk, Greek yogurt, eggs, maple syrup or honey and vanilla until combined.
3. Combine
Add oats, protein powder, baking powder, cinnamon, nutmeg and salt. Stir well, then fold in apples.
4. Bake
Spread evenly in the prepared dish and bake about 35–40 minutes, until the center is set and the top is lightly golden.
5. Cool & Portion
Cool at least 10 minutes, then divide into nine servings. Add Greek yogurt and cinnamon when serving if desired.
Estimated Nutrition
Per serving, based on nine servings: approximately 210–250 calories, 12–16 grams of protein, 32–38 grams of carbohydrates and 4–7 grams of fat.
Nutrition values are estimates and will vary based on the protein powder, milk, Greek yogurt, sweetener, apples and portion sizes used.
Meal Prep & Storage
Cool before transferring portions to airtight containers and refrigerate promptly. For best quality, use refrigerated portions within 3–4 days. Individual portions can also be frozen for longer storage, thawed safely in the refrigerator and reheated until hot.
Easy Variations
- Try Honeycrisp, Fuji, Gala or Granny Smith apples.
- Add chopped walnuts or pecans for extra texture.
- Add blueberries or raisins for additional fruit.
- Use whey or plant-based protein powder, adjusting liquid if needed because powders absorb moisture differently.
- Reduce the maple syrup or honey if you prefer less added sweetness.
Tips for Better Protein Baked Oatmeal
Protein powders absorb liquid differently, so texture can vary by brand. Avoid excessive protein powder because it can make baked oatmeal dry or dense. Dice apples relatively small for even distribution and let the bake rest before slicing.
FAQ
Can I use whey or plant-based protein?
Yes, but different protein powders can change moisture and texture, so adjust liquid slightly if necessary.
Can I eat it cold?
Yes. Once fully cooked and stored safely, it can be eaten chilled or reheated.
What can I serve with it?
Greek yogurt, fresh fruit or a small amount of nut butter can complement the bake depending on your nutrition goals.
Warm apple-cinnamon flavor, convenient portions and protein built into breakfast.
