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Peanut Butter Banana Overnight Oats

Oats soaked overnight with peanut butter, banana, and milk. No cooking.

vegetarianbreakfastno-cookmake-ahead
SERVES 4 625 CAL / SERVING 10 min PREP 0 min COOK $3.59 TOTAL
OVERDRAFT KITCHEN
★ ITEMIZED GROCERY RECEIPT ★
Peanut Butter Banana Overnight Oats
SERVES 4 · OTTAWA · 2026
320 g rolled oats $0.90
4 tbsp smooth peanut butter $0.28
4 bananas, mashed or sliced $1.00
800 mL 2% milk $1.20
2 tbsp table syrup or honey $0.18
0.5 tsp ground cinnamon $0.03
SUBTOTAL$3.59
GST / HSTyou've suffered enough
TOTAL$3.59
COST PER SERVING
$0.90
— — — TEAR HERE — — —
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THANK YOU FOR SPENDING LESS
THE METHOD
1

Divide the oats among four jars or bowls or use one large container.

2

Add the peanut butter, syrup, and cinnamon, then pour in the milk. Stir well until the peanut butter loosens and everything is combined.

3

Fold in the mashed banana, saving a few slices for topping if you like.

4

Cover and refrigerate overnight, or at least 4 hours.

5

In the morning, stir and loosen with a splash more milk if it is too thick. Top with the reserved banana and serve cold, or warm through in the microwave.

When the math doesn't work

Make all four the night before; they keep for 3 days in the fridge.

  • Overripe bananas are cheaper (or free from the discount rack) and mash better.
  • Water or the cheapest milk both work if you are stretching the budget.
Nutrition Per Serving
625 Calories
22g Protein
95g Carbs
18g Fat
10g Fiber
160mg Sodium
~15% DV Iron~25% DV Calcium

Estimated values per serving.

Gluten-Free

This recipe is naturally gluten-free.

Oats are naturally gluten-free but are often processed alongside wheat — use certified gluten-free oats if you need to avoid cross-contamination.

Pricing updated August 2026 using Ottawa Walmart and Ottawa No Frills averages. Prices verified at Ottawa No Frills, August 2026. Rolled oats $0.28/100g from 1kg bag ($2.77). Peanut butter $0.43/100g (4 tbsp ~64g). Bananas ~$0.25 each. Milk $0.15/100mL from 4L jug ($5.98). Table syrup ~$0.60/100mL. Cinnamon estimated.