Simple and Delicious High-Protein Apple & Peanut Butter Overnight Oats

This high-protein apple overnight oats recipe is the ultimate healthy breakfast that’s nutritious, satisfying, and perfect for busy mornings. Combining the sweetness of fresh apples, creamy peanut butter, and the richness of Greek yogurt, this meal is a balanced way to fuel your day.

We first tried this recipe during a busy meal-prep weekend, and it’s been our go-to ever since. With simple ingredients and just 15 minutes of prep, these oats make mornings so much easier. Whether you’re heading to work, school, or hitting the gym, this make-ahead breakfast will keep you full and energized for hours.

What Makes These Overnight Oats So Nutritious?

We love how this recipe combines wholesome ingredients that pack a punch of nutrients. Here’s why these oats deserve a spot in your fridge:

• High in protein: Greek yogurt and peanut butter provide high-quality protein to keep you satisfied and support muscle health.
• Rich in fiber: The rolled oats and apples offer dietary fiber to aid digestion and keep your gut happy.
• Healthy fats: Natural peanut butter is a great source of heart-healthy monounsaturated fats.
• Low sugar: Using unsweetened soy milk and just a touch of maple syrup keeps this dish lightly sweetened without overloading on added sugar.

Plus, the combination of protein, fiber, and moderate healthy fats makes this a complete meal that will stabilize your energy throughout the morning.

Recipe Info

• Cuisine: American
• Servings: 4
• Prep Time: 15 minutes
• Total Time: 8 hours 15 minutes

Ingredients for High-Protein Apple Overnight Oats

You’ll need just a few pantry basics and fresh produce to whip up this easy recipe!

• 2 small Honeycrisp apples (about 6 ounces each), divided
• 2 cups old-fashioned rolled oats
• 2 cups unsweetened soy milk
• ¾ cup nonfat plain strained (Greek-style) yogurt
• 4 tablespoons smooth natural peanut butter, divided
• 2 tablespoons pure maple syrup
• 1 tablespoon vanilla extract
• ¼ teaspoon salt
• ⅛ teaspoon ground cinnamon

How to Make High-Protein Apple & Peanut Butter Overnight Oats

This recipe is as simple as it gets—perfect for beginner cooks and seasoned meal preppers alike.

1. Chop the apple: Chop 1 Honeycrisp apple into bite-sized pieces. Set aside.
2. Mix the base: In a medium mixing bowl, combine the rolled oats, soy milk, yogurt, 3 tablespoons of peanut butter, maple syrup, vanilla extract, salt, and cinnamon. Whisk well to combine.
3. Add the apples: Stir in the chopped apple pieces until evenly distributed. Cover the bowl with a lid or plastic wrap and refrigerate for at least 8 hours, or overnight, to let the oats thicken.
4. Assemble and serve: When ready to eat, portion the oats evenly into 4 (8-ounce) jars or bowls. Top each with an equal amount of the remaining 1 tablespoon of peanut butter (about ¾ teaspoon per serving).
5. Add fresh apple topping: Finely chop half of the remaining apple and sprinkle about 3 tablespoons over each bowl. Save the remaining apple half for another use.

Enjoy immediately, or cover and store in the fridge for up to 5 days for an easy grab-and-go breakfast option.

Simply Nourished Life’s Meal Prep Tips

• Choose the right oats: Use old-fashioned rolled oats for the best texture. Quick oats will get mushy, and steel-cut oats won’t soften enough.
• Keep it creamy: For an extra creamy texture, use whole-milk yogurt or add a splash of soy milk before serving.
• Customizable toppings: Want a crunch? Add chopped nuts, seeds, or granola on top just before eating.
• Allergy-friendly swaps: Substitute almond butter or sunflower seed butter for peanut butter to accommodate dietary needs.

Variations and Storage

These oats are endlessly versatile! Here are some ideas to switch things up:

Flavor Variations

• Fall vibes: Swap cinnamon for pumpkin pie spice and top with dried cranberries.
• Chocolate twist: Add 1 tablespoon of cocoa powder to the base mixture and sprinkle with dark chocolate shavings.
• Berry burst: Use chopped strawberries or blueberries instead of apples for a fruity twist.

Storage Tips

• Store the oats in airtight jars or containers in the fridge for up to 5 days.
• Wait to add crunchy toppings, like nuts or granola, until right before serving to keep them crisp.

Nutrition Facts

This recipe serves 4. Nutrition estimates are below:

• Calories: 320
• Protein: 15g
• Fat: 10g
• Carbohydrates: 44g
• Fiber: 6g
• Sugar: 12g

Frequently Asked Questions

Can I make these oats vegan?

Yes! Simply use a plant-based yogurt instead of Greek yogurt, and you’ll have a fully vegan version of the recipe.

Can I use a different type of milk?

Absolutely. While unsweetened soy milk provides the highest protein, almond milk, oat milk, or dairy milk work just as well!

Can I heat these oats?

Yes, if you prefer warm oats, simply microwave a portion for 30-60 seconds before adding the toppings.

What other apples work well in this recipe?

You can use any firm, sweet apple like Fuji, Gala, or Pink Lady. Each adds a slightly different flavor profile.

Let’s Get Prepping!

We hope you love these high-protein apple overnight oats as much as we do! They’re quick, satisfying, and packed with nutrients to start your day right. Let us know how you customized your oats in the comments below or tag us on Instagram @SimplyNourishedLife. Looking for more make-ahead breakfast ideas? Check out our recipes for Easy Banana Chia Pudding and Protein-Packed Egg Muffins!