Healthy Baked Oats

By Lucy Parissi

5 from 6 votes

, Updated Aug 14, 2025

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Baked Oats is the perfect healthy breakfast recipe! Easy to make ahead, delicious warm or cold and Slimming World friendly. Make this baked oatmeal your own by adding your favourite fruit, nuts and seeds 🙂

A blue bowl with Healthy Baked Oats topped with seeds, raspberries, and a dollop of yogurt drizzled with caramel sauce; fresh raspberries and a fork complete the scene, with a small bowl of raspberries nearby.

Start your morning on the right note with my healthy baked oats recipe—a Slimming World–friendly, meal‑prep superstar that’s just as delicious warm as it is cold. This easy baked oatmeal combines nourishing oats, naturally sweet bananas and crunchy walnuts in a cozy, oven-baked bar that’s perfect for weekday breakfasts or grab‑and‑go snacks. Bonus? It’s endlessly customizable – think seasonal fruit, seeds, or a drizzle of honey and keeps beautifully in the fridge or freezer. It’s hearty, wholesome, and surprisingly satisfying.

Here’s What You’ll Need

  • Rolled wholegrain oats. Use gluten-free oats if you have an intolerance or sensitivity.
  • Milk – You can use any type such as coconut milk, soy, oat, almond etc if you are avoiding dairy.
  • One small ripe banana for natural sweetness.
  • A large egg to bind everything together.
  • A little melted butter, or coconut oil.
  • Light brown sugar or Sukrin Gold – just enough to add a little sweetness.
  • Baking powder (check it is Gluten Free) and salt.
  • Cinnamon and vanilla extract – feel free to add different spices or extracts if you prefer.
  • Fresh fruit like raspberries or blueberries or you can use frozen fruit like the mixed berry bags supermarkets carry for making smoothies. These are allowed as a healthy extra on SW.
  • A few mixed seeds or nuts to top, or mix into the oats
A flat lay of Healthy Baked Oats ingredients on a light surface: a banana, a bowl of oats, raspberries, an egg, milk, brown sugar, melted butter, seeds, baking powder, and cinnamon.

How to Make This Baked Oats Recipe

  1. Preheat the oven to 375°F (190°C) and place a rack in the middle of the oven. Put the chopped banana to a large bowl and mash with a fork until smooth.
  2. Add the egg, sweetener and melted Flora and mix together to combine.
  3. Stir in the milk, baking powder, salt, cinnamon and vanilla extract.
Two side-by-side images show hands mixing ingredients in a bowl. On the left, an egg and sugar are being added for Healthy Baked Oats. On the right, the mixture is being whisked together with a fork.
Two images showing Healthy Baked Oats steps: Left, a hand adds spices from a small bowl into a larger bowl of wet ingredients. Right, a hand pours liquid from a jar into a bowl containing mixed batter.
  1. Add the oats to the liquid ingredients and mix well. Transfer the batter into a square (8-inch) pan lined with baking paper. Spread to the corners of the tin using a spatula.
  2. Top with fresh or frozen fruit pushing them halfway into the oats. I used raspberries but blueberries are also a great option. Add a handful of mixed seeds, such as pumpkin and sunflower.
  3. Bake until firm, around 40-45 minutes. Leave to cool slightly before slicing.
A square baking pan lined with parchment paper, filled with Healthy Baked Oats mixture, topped with fresh raspberries, sunflower seeds, and pumpkin seeds.
A blue bowl with two Healthy Baked Oats bars topped with seeds, a spoonful of yogurt drizzled with honey, and fresh raspberries; extra raspberries and a cloth napkin are nearby.

Serving Suggestions

This banana & walnut baked oats recipe is a healthy, warming breakfast that feels like banana bread, but without the guilt. It’s guaranteed to fuel your day, whether you eat for breakfast or grab a slice for a quick snack.

My favorite way to enjoy this recipe is warm, drizzled with a little honey or maple syrup. Add fat-free yogurt and fresh fruit on the side for a healthy breakfast. It really tastes like such a treat – simply warm up for 20-30 seconds in the microwave.

Slice into thin bars to eat cold as a snack. Easy to pack for when you are on the go plus so filling and healthy!

Serve warm with a scoop of frozen yoghurt and a drizzle of maple syrup to serve this as a healthy dessert.

Four Healthy Baked Oats raspberry bars topped with seeds are arranged on a white cutting board, with a small dish of fresh raspberries nearby. A hand is reaching in to pick up one of the bars.

Recipe Notes and Tips

Baked oatmeal will keep for 3-4 days in the fridge which works out great as a make-ahead breakfast. 

You can also freeze it – cut into slices, wrap well, label and freeze for up to a month. Thaw overnight in the fridge and warm in the microwave before serving.

This is a great recipe for customizing. Add different fruit and nuts to suit the seasons – apples and pecans are a fave combo. 

A white bowl with a piece of Healthy Baked Oats, sliced apples, and a dollop of yogurt or cream, sprinkled with cinnamon, on a lace napkin with a fork.

Have you made my healthy baked oats recipe? Post a photo on my Facebook page, share it on Instagram, or save it to Pinterest with the tag #supergoldenbakes and make my day!

A blue bowl with Healthy Baked Oats topped with seeds, raspberries, and a dollop of yogurt drizzled with caramel sauce; fresh raspberries and a fork complete the scene, with a small bowl of raspberries nearby.
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5 from 6 votes

Healthy Baked Oats | Slimming Friendly

By Lucy Parissi | Supergolden Bakes
Baked Oats is the perfect healthy breakfast recipe. Easy to make ahead, delicious warm or cold and Slimming World friendly. Make this baked oatmeal your own by adding your favourite fruit, nuts and seeds 🙂
Prep Time: 5 minutes
Cook Time: 45 minutes
Total Time: 50 minutes
Servings: 9
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Ingredients

  • 1 medium ripe banana roughly chopped
  • 1 large egg
  • 3 tbsp Sukrin Gold or soft light brown sugar
  • 25 g (2 tbsp) Flora Light, melted sub with butter or coconut oil
  • 250 ml ( 1 cup) skimmed milk or non dairy milk
  • 1 tsp vanilla or almond extract
  • 1 tsp baking powder
  • ½ tbsp cinnamon
  • ¼ salt
  • 150 g ( 1 ½ cups) rolled oats
  • handful fresh or frozen raspberries or blueberries
  • 2 tbsp mixed seeds optional

Serving Suggestions

  • Fat Free Greek Yoghurt
  • Maple syrup or honey
  • fresh fruit

Instructions 

  • Preheat the oven to 190C (375F) and place a rack in the centre of the oven.
  • Put the chopped banana to a large bowl and mash with a fork until smooth.
  • Add the egg, sweetener and melted Flora and mix together to combine.
  • Stir in the milk, baking powder, salt, cinnamon and vanilla extract.
  • Add the oats and mix well.
  • Transfer the batter into a square (8×8 inch) cake tin lined with baking paper. Spread to the corners of the tin using a spatula.
  • Top with fresh or frozen fruit pushing them halfway into the oats. I used raspberries but blueberries are also a great option.
  • Add a handful of mixed seeds such as pumpkin and sunflower.
  • Bake until firm, around 40-45 minutes. Leave to cool slightly before slicing.
  • Serve warm with fat-free Greek yoghurt and extra fruit on the side. Add a light drizzle or maple syrup, honey or 0% calorie syrup.

Notes

Healthy Baked Oatmeal Notes & Tips
Baked oatmeal will keep for 3-4 days in the fridge which works out great as a make-ahead breakfast. 
You can also freeze it – cut into slices, wrap well, label and freeze for up to a month. Thaw overnight in the fridge and warm in the microwave before serving.
This is a great recipe for customising. Add different fruit and nuts to suit the seasons – apples and pecans are a fave combo. 
Nutritional Info
This Slimming World Baked oats contains 1 syn per serving if cut into nine or even less if you portion into more slices.
This recipe also uses some of your healthy allowance for the milk, oats and fruit. There’s 116 calories and 4 WeightWatchers SmartPoints per portion (if cut into 9 slices).
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Please note I am not affiliated in any way with Slimming World or Weight Watchers.  Those plans are often updated in line with latest nutritional guidance and may change so for accurate information it is best to join as a member.
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Nutritional information is always approximate, and will depend on quality of ingredients and serving sizes.
 

Nutrition

Calories: 116kcal | Carbohydrates: 17g | Protein: 5g | Fat: 4g | Saturated Fat: 1g | Cholesterol: 19mg | Sodium: 36mg | Potassium: 220mg | Fiber: 2g | Sugar: 3g | Vitamin A: 235IU | Vitamin C: 1mg | Calcium: 69mg | Iron: 1mg

Nutritional information is always approximate, and will depend on quality of ingredients and serving sizes.

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26 Comments

  1. Constance says:

    Do you have a carb count per serving?

    Reply
    1. Lucy Parissi says:

      Around 230 calories & 33g carbs per 100g according to caloriecount.com – hope this helps

      Reply
  2. Magenta says:

    5 stars
    Consistently battling to find new way's to eat oats in the morning, this is definitely a recipe I will trialing out over the weekend!

    Reply
  3. Jenna Kate Kelly says:

    You have inspired me to want to bake more! I made a basic lemon drizzle cake this evening!

    Reply
  4. Laura Vitty says:

    5 stars
    Mmmm! Looks like an interesting twist on a flapjack… and that is a good thing!

    Reply