Overnight oats live in the breakfast hall of fame because they’re one of the rare meal-prep items that actually requires zero prep on the day you eat them. Five minutes of stirring on Sunday and you have breakfast for half the week.
This is my default version. Peanut butter, banana, oats, chia. It’s basically a healthier version of a peanut butter banana sandwich that you eat with a spoon out of a jar. Doesn’t get more accessible.
Why this works
The chia seeds are doing real work here. They absorb liquid overnight and create a pudding-like texture that elevates oats from “wet cereal” to “actual dessert-feeling breakfast.” Greek yogurt adds protein and tang. Natural peanut butter (no added sugar or oils) gives healthy fats and a 4g protein boost.
Old-fashioned rolled oats are essential. Instant oats turn to mush; steel-cut don’t soften enough overnight. The full-flake structure of rolled oats is what gives the final result a pleasant chew.
Variations to try
- Almond joy: swap peanut butter for almond butter, add 2 tbsp shredded coconut and 1 tbsp dark chocolate chips.
- Apple cinnamon: skip banana and peanut butter; add 1/2 chopped apple, 1/4 tsp cinnamon, and 1 tbsp walnuts.
- Chocolate peanut butter: add 1 tbsp cocoa powder and an extra tsp maple syrup.
- Berry vanilla: skip peanut butter and banana; add 1/2 cup mixed berries (fresh or frozen).
Storage and meal prep
Make 4 jars on Sunday for Monday-Thursday breakfast. Hold off on the banana until the morning you eat it — bananas get mushy and weirdly sweet after a couple days mixed into oats. Each jar takes maybe 90 seconds to assemble.
A 16 oz mason jar is the sweet spot. Use 12 oz and you’ll have to stir aggressively to fit everything; use 24 oz and you’ll feel like you’re eating out of a bucket.
Ingredients
Makes 1 servings.
- 1/2 cup old-fashioned rolled oats (not instant, not steel-cut)
- 1/2 cup unsweetened almond milk (or any milk)
- 1/4 cup plain Greek yogurt
- 1 tbsp natural peanut butter
- 1 tbsp chia seeds
- 1 tsp maple syrup or honey (optional)
- 1/2 tsp vanilla extract
- 1/2 ripe banana, sliced
- 1 tbsp chopped peanuts to top (optional)
Instructions
- In a jar or bowl with a lid (16 oz works), combine oats, almond milk, Greek yogurt, peanut butter, chia seeds, maple syrup if using, and vanilla.
- Stir well. Make sure the peanut butter breaks up into the mix — it tends to clump.
- Add half the banana slices, stir lightly to distribute.
- Cover and refrigerate at least 6 hours, ideally overnight.
- In the morning, stir, top with remaining banana and chopped peanuts, and eat. Add a splash of milk if it's thicker than you like.
Nutrition (per serving)
| Nutrient | Amount |
|---|---|
| Calories | 350 kcal |
| Protein | 12 g |
| Carbs | 45 g |
| Fat | 14 g |
| Fiber | 8 g |
| Sugar | 14 g |
| Sodium | 130 mg |
Estimates calculated from typical USDA values for the listed ingredients. Your numbers will vary slightly based on brand and exact portion.
Frequently Asked Questions
Can I use steel-cut or instant oats?
Old-fashioned rolled oats are best. Instant oats turn to mush; steel-cut don't soften enough overnight. If you only have instant, halve the milk; if you only have steel-cut, soak them at least 24 hours.
How long do they keep?
About 4 days in the fridge if banana is mixed in (it browns a little but stays edible). 5 days if you only add banana the morning you eat it.
Can I make a week's worth at once?
Yes — make 4 jars Sunday night, eat through Thursday. Don't add banana to all of them at once; bananas get mushy and sweet over a few days. Add it the morning of.
Will this make me full until lunch?
For most people, yes. The combination of oats, chia, peanut butter, and Greek yogurt is high in fiber and protein, which both extend satiety. If you're a bigger person or doing intense morning workouts, you may need a little more — add a hard-boiled egg on the side.
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