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High-Protein Overnight Oats

These high-protein overnight oats are creamy, delicious, and packed with over 40g of protein per serving. Perfect for busy mornings, they’re endlessly customizable with flavor options like banana bread, apple pie, peanut butter & jelly, and more. Meal prep-friendly, nutritious, and satisfying—this is the ultimate grab-and-go breakfast.
Prep Time5 minutes
Cook Time5 minutes
Total Time10 minutes
Course: Breakfast
Cuisine: American, Healthy
Keyword: healthy oats, high-protein oats, meal prep breakfast, overnight oats, protein breakfast
Servings: 1
Calories: 426kcal

Ingredients

Base (per serving):

  • ½ cup unsweetened almond milk plain or vanilla; more if needed
  • ¼ cup plain or vanilla Greek yogurt or plant-based alternative for vegan option
  • ½ cup old-fashioned rolled oats gluten-free certified or regular
  • 1 scoop vanilla or unflavored protein powder whey or pea protein
  • ½ tablespoon chia seeds
  • ½ teaspoon vanilla extract

Flavor Options (choose one):

Banana Bread

  • ½ ripe banana mashed
  • 1 teaspoon cinnamon
  • Sliced banana for topping

Pumpkin Spice Latte

  • ¼ cup pumpkin purée not pie filling
  • 1 –2 tablespoons maple syrup or honey
  • ¾ teaspoon pumpkin pie spice

Apple Pie

  • ¼ –⅓ cup apple diced small (+ extra for topping)
  • 1 –2 tablespoons maple syrup or honey
  • 1 teaspoon cinnamon
  • Pecans for topping

Peanut Butter & Jelly

  • 1 –2 tablespoons peanut butter
  • ¼ cup diced fresh strawberries
  • ¼ cup additional almond milk

Peaches ‘n Cream

  • ¼ cup additional almond milk
  • 1 –2 tablespoons maple syrup or honey
  • ¼ of a peach diced
  • 1 teaspoon cinnamon

Coconut Bliss

  • 1 –2 tablespoons shredded coconut
  • Sliced banana for topping

Instructions

  • In a sealable mason jar or container, combine all base ingredients. Stir until well mixed, ensuring oats are fully submerged in the milk. Add an extra splash if needed.
  • Choose and add your desired flavor ingredients. Stir to combine.
  • Seal the jar/container with a lid. Refrigerate overnight or for at least 6 hours (can be stored up to 5 days).
  • When ready to serve, give it a stir and add a bit more almond milk if preferred. Top with any additional toppings and enjoy chilled—or warm it up if you like!

Notes

Type of Oats: Rolled oats work best. Quick oats will be softer; avoid steel-cut oats.
Milk Options: Any milk works—try oat, cashew, skim, or 2%.
Yogurt Alternatives: Use coconut or almond milk yogurt for a dairy-free version.
Liquid Ratio: Make sure oats are covered by at least a few centimeters of liquid.
Storage: Keep in the fridge for up to 5 days. Great for meal prep.
Warming Option: Microwave 30–60 seconds if you prefer it warm.
Freezer Friendly: Freeze in individual portions and thaw overnight in the fridge.