Overnight Oats Meal Prep: Breakfast for Several Days in a Jar
Oats, liquid, a quick stir, chill overnight – breakfast is ready in the morning.
Disclosure: This article contains affiliate links. If you buy through them, we earn a commission – the price stays the same for you.
When there's no time to cook in the morning, overnight oats save the day. You make them the night before or on Sunday for several days – and in the morning you just reach into the fridge.
The trick for crunchy toppings: don't stir in nuts and granola from the start; pack them separately – just like separate sauce containers.
Base recipe per jar (approx. 16 oz / 400–500 ml)
- ½ cup (40–50 g) rolled oats (old-fashioned or quick)
- ½–⅔ cup (120–150 ml) milk / oat milk / yogurt mix
- 1 tsp chia seeds or flaxseed (optional, makes it creamier)
- Pinch of salt, a little cinnamon or vanilla
- Sweetness to taste: banana, honey, maple syrup – sparingly
Shelf life and toppings
| Component | When to add? | Approx. shelf life |
|---|---|---|
| Oats + liquid | on prep day | 3–4 days chilled |
| Fresh berries | in the morning or the day before | 1–2 days on the oats |
| Nuts, seeds, granola | only when eating | otherwise soft |
| Nut butter / yogurt | can soak along | great flavor |
Variations for the week
- Chocolate banana: cocoa powder, banana slices, peanut butter.
- Berry yogurt: mixed berries, Greek yogurt, lemon.
- Apple cinnamon: grated apple, cinnamon, walnuts on the side.
- Mocha: some cold coffee, cocoa, a little yogurt.
Too runny? More oats or chia. Too thick? Add a splash of milk. After some practice, you'll hit your ideal consistency blind.
Our picks
We link to Amazon search results instead of individual products – that way you see current prices, sizes and reviews and choose for yourself. Prices and availability may change.
- 16 oz screw-top jars with lids
Ideal as an overnight oats portion.
- Reusable spoons to go folding or fixed
For the office without hunting for cutlery.
- Mini containers for toppings nuts & granola
Crunchy until you eat.
FAQ
Can I mix quick and old-fashioned oats?
Yes – old-fashioned for bite, quick oats for creaminess.
Do overnight oats work without a fridge?
Not for hours in the warmth. Keep them chilled until you eat them.
Are they good warm too?
Yes, briefly in the microwave – the texture gets softer.
How much protein can I add?
A lot more with Greek yogurt or skyr, protein powder or nuts.
Gluten-free?
Only with certified gluten-free oats, if needed.
Keep reading
Disclosure / affiliate: This article contains affiliate links. As an Amazon Associate we earn from qualifying purchases. The price you pay stays the same. Assessments are based on manufacturer specs and everyday use (as of October 2026).