No-Bake Peanut Butter Banana Oatmeal Bars

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Simple, chewy bars made with rolled oats, creamy peanut butter, and ripe bananas—perfect for a quick breakfast or snack. This American-inspired recipe, ready in about 10 minutes, combines rolled oats, peanut butter, honey into a breakfast that fuels the morning without the midday crash — make-ahead-friendly and balanced enough to anchor the first meal of the day. Each serving lands at about 150 calories and feeds 12, so it sits comfortably in a weekly breakfast rotation alongside fruit, yogurt, or coffee. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Serves 12 American cuisine 150 cal/serving
Build a week of meals around this recipe → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Affiliate disclosure: AislePrompt may earn a commission on qualifying purchases made through Amazon links, at no additional cost to you. See our policy →

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Bakeware & baking tools → Shop all kitchen tools →

Instructions

  1. Step 1: In a medium bowl, combine 1 cup rolled oats, 1/2 cup creamy peanut butter, 1/4 cup honey, and 1 mashed ripe banana until a thick, cohesive mixture forms and holds together when pressed.
  2. Step 2: Line an 8x8-inch baking dish with parchment paper. Press the oat mixture firmly into the dish, spreading it evenly to cover the bottom and edges.
  3. Step 3: If using, sprinkle 1/4 cup chopped walnuts evenly over the top of the mixture.
  4. Step 4: Refrigerate for at least 2 hours until firm and set.
  5. Step 5: Lift the parchment paper to remove the slab from the dish, then cut into 12 equal bars. Store in an airtight container for up to 1 week.

Frequently asked questions

How long does No-Bake Peanut Butter Banana Oatmeal Bars take to make?

Total time is about 10 minutes (10 min prep + 0 min cook). Most home cooks find this fits comfortably into a busy morning; prep components the night before to save active time.

How do I store leftover No-Bake Peanut Butter Banana Oatmeal Bars?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat in the microwave or oven; egg- or grain-based items may need a splash of milk or water to refresh texture. Cold-served items (overnight oats, smoothies) keep 2–3 days in the fridge.

Can I substitute ingredients in No-Bake Peanut Butter Banana Oatmeal Bars?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale No-Bake Peanut Butter Banana Oatmeal Bars for a different number of people?

The recipe is written for 12 servings. Multiply each ingredient by (your serving target / 12). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with No-Bake Peanut Butter Banana Oatmeal Bars?

American breakfast like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

What others are saying

Related recipes