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Crockpot banana oatmeal recipe served in a white round bowl and silver spoon.

Banana Walnut Crockpot Oatmeal

A warm, comforting slow cooker oatmeal made with steel-cut oats, mashed banana, brown sugar, cinnamon, and crunchy walnuts. Perfect for an easy make-ahead breakfast.
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Author Kori
Prep Time 5 minutes
Cook Time 7 hours
Total Time 7 hours 5 minutes
Course Slow Cooker Breakfast
Cuisine American
Servings 4
Calories 394 kcal

Ingredients
  

  • 1 cup steel-cut oats
  • 2 cups water
  • 2 cups milk (non-dairy, nonfat, skim, or whole is fine)
  • 1 very ripe banana (mashed until smooth)
  • ⅓ cup chopped walnuts
  • ⅓ cup packed brown sugar (may be omitted)
  • 2 teaspoons ground cinnamon
  • 1 teaspoon vanilla extract
  • ½ teaspoon ground nutmeg
  • ½ teaspoon table salt

Instructions
 

  • Lightly grease a 4-quart slow cooker. Add the oats, mashed banana, walnuts, milk, water, cinnamon, vanilla, nutmeg, and salt. Stir well to combine.
    Putting in the ingredients for crockpot banana oatmeal recipe into a white oval slow cooker and then mixing everything together.
  • Cover and cook on low for 7–8 hours, until the oats are tender and creamy.
    Placing the lid on the slow cooker and cooking the crockpot banana oatmeal recipe, and then removing the lid once cooked.
  • Before serving, stir the oatmeal well to loosen the texture before serving. Add milk if needed. Serve warm with desired toppings.
    Stirring the crockpot banana oatmeal recipe and then scooping it using a black spoon into a white bowl for serving.

Notes

For more helpful hints, substitution ideas, slow cooking tips, and other delicious recipe ideas, check out my post above.
CROCKPOT TIPS: Every slow cooker heats a little differently, so cooking times can vary. Once you know how your crock pot runs (hotter or cooler), you can adjust as needed. 
TIPS: Stir well before serving to fully break up the steel-cut oats, and add a splash of milk if you prefer a looser consistency. 
VARIATIONS: Brown sugar may be omitted entirely for a less sweet oatmeal, or replaced with pure maple syrup to taste. Add 1–2 tablespoons flax meal or chia seeds for extra fiber, swap walnuts for pecans, or stir in a spoonful of peanut butter for a richer flavor.
SERVING SUGGESTIONS: Spoon into bowls and top with banana slices and walnuts, drizzle with a little extra brown sugar, or portion into containers for easy grab-and-go breakfasts to reheat later.

Nutrition

Calories: 394kcalCarbohydrates: 59gProtein: 12gFat: 13gSaturated Fat: 3gPolyunsaturated Fat: 5gMonounsaturated Fat: 2gCholesterol: 15mgSodium: 349mgPotassium: 363mgFiber: 6gSugar: 28gVitamin A: 222IUVitamin C: 3mgCalcium: 211mgIron: 2mg
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