Protein overnight oats made with old-fashioned rolled oats, Greek yogurt, creamy peanut butter, and chocolate protein powder deliver a satisfying, high-protein breakfast that’s easy to prep the night before.

Overnight oats are a no-cook way to enjoy oatmeal: combine the ingredients in a jar or bowl, refrigerate, and let the oats soften as the flavors meld. In the morning, stir and add any toppings you like. You can eat them cold straight from the fridge or warm them briefly in the microwave.
This recipe is a great meal-prep option for busy mornings and provides a balanced start to the day with whole grains, fiber, and protein.
Recipe highlights
High protein: One serving contains about 17 grams of protein, making it a filling breakfast choice.
Make-ahead breakfast: Prepare jars the night before for quick mornings.
Versatile base: This recipe is easy to customize with different protein powders, nut butters, milk, or toppings.
Ingredients
The recipe uses simple pantry staples. Adjust quantities to taste.

- Old-fashioned rolled oats – use rolled (not instant) oats for the best texture.
- Chocolate protein powder – adds flavor and boosts protein.
- Milk – any milk works: dairy, almond, soy, or coconut. Unsweetened vanilla almond milk keeps the carbs lower.
- Plain Greek yogurt – helps thicken the mixture and adds protein.
- Creamy peanut butter – provides healthy fats and extra protein.
- Maple syrup – or honey, agave, or brown sugar to sweeten.
- Chia seeds – help thicken the oats overnight.
- Vanilla extract – for extra flavor.
- Salt – a pinch to enhance flavors.
- Cinnamon – a pinch for warmth and depth.
See the recipe card below for exact quantities.
Instructions
Add all ingredients to a 12–16 oz jar or a bowl and stir until the peanut butter and protein powder are fully incorporated and there are no clumps. A wide-mouth 16 oz jar gives you extra room for mixing, but a 12 oz jar works if you prefer a more compact container.

Cover and refrigerate for at least four hours, or overnight. In the morning, remove from the fridge, stir to combine, and top as desired. If you prefer warm oats, heat in 30-second intervals in the microwave, stirring between intervals.

Topping ideas
Add texture and flavor with chopped peanuts, sliced or slivered almonds, toasted coconut flakes, chocolate chips, or granola. Fresh fruit such as banana slices, strawberries, or blueberries adds natural sweetness and extra fiber.

Substitutions
Customize this base to suit dietary needs or flavor preferences.
- Oats: Use higher-protein oats if you want more protein.
- Protein powder: Chocolate works well, but vanilla or other flavors are fine.
- Milk: Any milk is acceptable—dairy or plant-based. Be mindful that oat milk tends to be higher in carbs.
- Sweetener: Substitute maple syrup with honey, agave, or brown sugar.
- Nut butter: Almond butter, sunflower seed butter, or other nut/seed butters all work.
Equipment
A 12–16 oz wide-mouth mason jar is ideal because it’s easy to mix in and portable for on-the-go breakfasts. If you prefer, use a bowl and cover it with plastic wrap or reusable food wraps.

Storage
Store leftovers in an airtight container in the refrigerator for up to 4 days.
FAQ
Old-fashioned rolled oats give the best texture, but quick oats can work in a pinch—they will become softer and may be a bit mushier.
📖 Recipe

Protein Overnight Oats
Ingredients
- ½ cup old-fashioned rolled oats
- 1 scoop chocolate protein powder
- ¾ cup almond milk (unsweetened vanilla)
- ¼ cup plain Greek yogurt
- 1 tablespoon creamy peanut butter
- 1 tablespoon maple syrup
- 2 teaspoon chia seeds
- ¼ teaspoon vanilla extract
- ⅛ teaspoon salt
- 1 pinch cinnamon
Instructions
- Add all ingredients to a 12–16 oz jar or a bowl and stir until smooth and fully combined.
- Cover and refrigerate for at least 4 hours or overnight.
- Stir before serving and add your favorite toppings. Heat briefly if you prefer warm oats.
Notes
Storage: Keep leftovers refrigerated in an airtight container for up to 4 days.
Nutrition
Carbohydrates: 51 g
Protein: 17 g
Fat: 16 g
Fiber: 8 g
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