Pistachio Overnight Oats

Featured in: Quick Snack Bites

These creamy overnight oats combine rolled oats with Greek yogurt, milk, and crunchy pistachios for a protein-rich breakfast that's ready when you wake up. The chia seeds add thickness while vanilla and honey provide natural sweetness.

Simply mix everything together before bed, refrigerate overnight, and top with extra pistachios or fresh fruit in the morning. Perfect for busy weekdays, this make-ahead breakfast stays fresh in the fridge for up to three days.

Updated on Sat, 07 Feb 2026 15:10:00 GMT
Thick and creamy pistachio overnight oats layered in a jar, topped with chopped pistachios and fresh berries for a protein-packed breakfast. Save
Thick and creamy pistachio overnight oats layered in a jar, topped with chopped pistachios and fresh berries for a protein-packed breakfast. | fryzia.com

My morning routine completely changed last winter when I discovered I could prep breakfast the night before and actually sleep an extra twenty minutes. There is something deeply satisfying about waking up to a ready-made meal that feels indulgent but takes zero morning effort. The pistachio version happened by accident when I ran out of my usual almond butter and reached for a bag of shelled pistachios languishing in the pantry.

Last week my sister texted me at midnight asking for the recipe because her office breakfast situation had become desperate. I walked her through it over the phone while she stood in her kitchen wearing pajama pants, and she texted back the next morning that she felt like she had tricked the system into giving her a gourmet breakfast. Now she keeps a jar on her desk at work.

Ingredients

  • 1/2 cup rolled oats: These absorb liquid beautifully without turning mushy, and I learned the hard way that steel-cut oats stay too crunchy even after overnight soaking
  • 1/2 cup milk: Dairy milk adds creaminess but oat milk works surprisingly well and lets the pistachio flavor shine through even more
  • 1/4 cup Greek yogurt: This is what makes it taste like dessert for breakfast, and the protein keeps me full until actual lunchtime
  • 1 tablespoon chia seeds: They swell up and create this pudding-like consistency while adding omega-3s that I pretend cancels out the honey
  • 1/2 teaspoon vanilla extract: Do not skip this because it bridges the gap between the earthy pistachios and creamy yogurt
  • 1 tablespoon honey or maple syrup: The pistachios provide subtle sweetness so you might find you need less sweetener than expected
  • 2 tablespoons shelled pistachios: Chop them right before mixing so they release those fresh aromatic oils that make your kitchen smell amazing

Instructions

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Combine your base:
Dump everything except the toppings into a jar and stir thoroughly for about thirty seconds until the chia seeds are distributed and no dry pockets of oats remain at the bottom
Let it work its magic:
Cover the jar and slide it into the fridge for at least six hours though I have eaten it after four hours in a pinch and it was still delicious
Morning assembly:
Give it a good stir because the chia seeds will have settled to the bottom, then shower it with extra chopped pistachios and whatever fruit you have on hand
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Rinse produce, clean cookware, and fill pots smoothly with flexible spray options for everyday cooking.
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Cold and creamy pistachio overnight oats topped with fresh berries and chopped pistachios, ready to enjoy for an easy morning meal. Save
Cold and creamy pistachio overnight oats topped with fresh berries and chopped pistachios, ready to enjoy for an easy morning meal. | fryzia.com

Sunday meal prep became so much more bearable once I started making three jars at once. My roommate kept stealing spoonfuls before I could even label them, which is basically the highest compliment a breakfast can receive in our apartment.

Make It Your Own

Almonds and walnuts work beautifully here but pistachios have this natural butteriness that makes the whole thing feel more decadent than it actually is. I tried pecans once and while they were good, the flavor overpowered everything else in the jar.

Spice It Up

A pinch of cardamom or cinnamon transforms this into something that tastes like it came from a fancy brunch spot. The cardamom particularly highlights the floral notes in the pistachios while cinnamon makes it taste like comfort in a jar.

Storage And Prep

These keep for three days in the fridge so I usually make a batch on Sunday night and my mornings are practically effortless. The oats continue softening over time so the texture on day three is more like traditional oatmeal but in the best possible way.

  • Use wide-mouth jars because stirring in narrow ones creates an absolute mess on your counter
  • Wait to add fresh fruit until you are ready to eat or it becomes sad and mushy by morning
  • If you prefer warm oats, microwave for thirty seconds then stir and heat in fifteen second increments
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Overnight oats with pistachios, chia seeds, and Greek yogurt in a glass jar, garnished with fresh fruit for a healthy breakfast. Save
Overnight oats with pistachios, chia seeds, and Greek yogurt in a glass jar, garnished with fresh fruit for a healthy breakfast. | fryzia.com

Sometimes the simplest breakfasts end up being the ones that stick around longest, and this little jar of oats has saved more rushed mornings than I care to admit.

Recipe FAQ Section

Can I use steel-cut oats instead of rolled oats?

Steel-cut oats have a chewier texture and require longer soaking time. They may not soften as much as rolled oats, even after overnight refrigeration. For best results, stick with old-fashioned rolled oats which absorb liquid perfectly and create a creamy consistency.

How long do these oats last in the refrigerator?

When stored in an airtight container, these overnight oats stay fresh for up to 3 days in the refrigerator. The texture may become softer over time as the oats continue to absorb liquid. You can prepare multiple portions at once for easy meal prep throughout the week.

Can I make this dairy-free?

Absolutely. Substitute dairy milk with almond, oat, soy, or coconut milk, and use plant-based Greek yogurt alternatives. The texture and flavor remain excellent, making this a versatile option for vegan diets or those avoiding dairy products.

Do I need to cook the oats?

No cooking is required. The oats soften and absorb the liquid while chilling in the refrigerator overnight. This no-cook method preserves nutrients and creates a creamy texture similar to traditionally cooked oatmeal. If you prefer warm oats, simply heat in the microwave for 30-60 seconds before serving.

Can I add protein powder?

Yes, adding a scoop of protein powder increases the protein content significantly. Stir in your preferred vanilla or unflavored protein powder when combining the ingredients. You may need to add an extra tablespoon of milk to maintain the desired consistency since protein powder can absorb additional liquid.

What other nuts work well in this recipe?

Almonds, walnuts, pecans, or cashews make excellent substitutes for pistachios. Each nut brings its own unique flavor profile—walnuts offer earthiness, almonds add subtle sweetness, while pecans provide a buttery taste. Feel free to mix and match based on your preferences and what you have available.

Pistachio Overnight Oats

Creamy oats soaked overnight with Greek yogurt, milk, and chopped pistachios for a quick protein-packed breakfast.

Prep duration
5 min
0
Complete duration
5 min
Created by Samantha Rivera

Classification Quick Snack Bites

Complexity Level Easy

Heritage American

Output 1 Portion Count

Dietary considerations Meat-Free

Components

Base

01 1/2 cup rolled oats
02 1/2 cup milk (dairy or plant-based)
03 1/4 cup Greek yogurt
04 1 tablespoon chia seeds
05 1/2 teaspoon vanilla extract
06 1 tablespoon honey or maple syrup (optional)

Nuts

01 2 tablespoons shelled pistachios, chopped

Toppings (optional)

01 Additional chopped pistachios
02 Fresh fruit or berries

Preparation Steps

Phase 01

Combine Base Ingredients: In a jar or bowl, combine rolled oats, milk, Greek yogurt, pistachios, chia seeds, vanilla extract, and honey or maple syrup (if using). Stir until well mixed.

Phase 02

Refrigerate Overnight: Cover and refrigerate for at least 6 hours or overnight to allow oats to soften and flavors to meld.

Phase 03

Serve and Garnish: In the morning, stir the oats thoroughly. Top with extra chopped pistachios and fresh fruit or berries if desired. Enjoy cold, or warm gently in the microwave if preferred.

Necessary tools

  • Mixing bowl or jar with lid
  • Spoon

Allergy information

Review all ingredients for potential allergens and consult with healthcare providers if you're uncertain about any item.
  • Contains: Milk (unless plant-based alternatives are used), Tree nuts (pistachios), and may contain gluten if oats are not certified gluten-free. If allergic or sensitive, ensure all ingredient labels are checked for potential allergens.

Nutrient breakdown (per portion)

These values are approximate and shouldn't replace professional medical guidance.
  • Energy Value: 280
  • Fat: 10 g
  • Carbohydrates: 35 g
  • Protein Content: 12 g