Low Calorie Apple Cinnamon Baked Oatmeal (Under 220 Calories!)
If you have been searching for a breakfast that feels indulgent but keeps your health goals firmly on track, this low calorie apple cinnamon baked oatmeal is exactly what your mornings have been missing. Warm, tender, fragrant with cinnamon, and studded with soft chunks of real apple, this baked oatmeal delivers all the comfort of a cozy breakfast casserole without the sugar overload or sky-high calorie count that traditional versions carry. At just 215 calories per generous serving, it is the kind of breakfast that actually keeps you full until lunch.
Traditional baked oatmeal recipes can clock in at 350 to 450 calories per serving, largely due to added brown sugar, butter, and whole milk. This version takes a smarter approach. We sweeten the entire dish with just two tablespoons of pure maple syrup spread across six servings, leaning instead on naturally sweet Honeycrisp or Fuji apples and a generous measure of warm spices to do the heavy lifting. Unsweetened almond milk replaces whole dairy milk, shaving calories without sacrificing moisture. A single egg and a tablespoon of coconut oil provide just enough richness to bind everything together beautifully.
Rolled oats are the star of this recipe, and for good reason. Unlike quick oats, old-fashioned rolled oats retain their structure during baking, giving you that satisfying chewy texture rather than a mushy porridge. Oats are also one of the best high-fibre breakfast ingredients available to home cooks. Each serving of this baked oatmeal delivers 5 grams of dietary fibre, primarily from the beta-glucan found in oats, which research has consistently linked to improved cholesterol levels, steadier blood sugar, and longer-lasting satiety. Pair that fibre with 7 grams of plant-forward protein per serving and you have a breakfast that genuinely sustains you.
The apple and cinnamon combination is a classic for a reason. Apples bring natural fructose sweetness, pectin fibre, and a tender bite once baked. Cinnamon does far more than add flavour, it contains compounds that may help support healthy blood sugar regulation, making it a particularly smart addition to a carbohydrate-based breakfast. We also add a pinch of nutmeg and a small amount of vanilla extract, which together create that warm, bakery-style aroma that will have everyone wandering into the kitchen before the timer goes off. A tablespoon of ground flaxseed is stirred quietly into the dry ingredients, contributing omega-3 fatty acids and an additional boost of soluble fibre without altering the flavour in any detectable way.
One of the biggest advantages of this low calorie apple cinnamon baked oatmeal is how well it lends itself to meal prep. Unlike stovetop oatmeal that needs to be made fresh each morning, this baked version slices beautifully into portions and stores in the refrigerator for up to five days. Simply reheat a square in the microwave for 60 to 90 seconds and breakfast is done. You can also freeze individual portions for up to three months, making this genuinely one of the most practical healthy breakfasts you can add to your weekly rotation. As a bonus, the flavours deepen as the spices continue to meld into the oats overnight, many people find that day-two portions taste even better than fresh out of the oven.
This recipe is also incredibly versatile. It is naturally dairy-free when made with almond milk, and it can easily be made egg-free and fully vegan with a simple flax egg substitution. The base recipe is also a wonderful canvas for variation, swap the apple for pear, stir in a handful of fresh or frozen blueberries, add a swirl of natural almond butter across the top before baking, or fold in a small handful of raisins for extra natural sweetness and chewiness. For an autumn-inspired version, replace a quarter cup of the almond milk with pure pumpkin puree and add a pinch each of ginger and allspice.
For those monitoring their sugar intake, it is worth highlighting that this recipe contains only 8 grams of sugar per serving, compared to 20 to 28 grams in many conventional baked oatmeal recipes. The sugar present comes almost entirely from the fruit and the small amount of maple syrup, meaning it arrives packaged alongside fibre and nutrients rather than as empty refined sugar calories. There is no brown sugar, no white sugar, and no refined sweetener of any kind in this dish.
Making this dish could not be simpler. You need one bowl, one baking dish, and about ten minutes of hands-on prep time. Dice your apples, whisk your wet ingredients, stir everything together, pour it into a greased dish, arrange the reserved apple slices across the top, dust with extra cinnamon, and bake. The oven does all the work from there. What emerges is a golden, slightly set, wonderfully fragrant breakfast that looks far more impressive than the ten minutes of effort required to prepare it.
Whether you are cooking for yourself, feeding a family on busy weekday mornings, or simply trying to build healthier habits without sacrificing the foods you love, this low calorie apple cinnamon baked oatmeal belongs in your regular breakfast lineup. It is proof that eating well does not mean eating less flavour, it just means making smarter choices about what goes into your bowl.
Ingredients
- 2 cups old-fashioned rolled oats (use certified gluten-free oats if needed; do not substitute quick oats or steel-cut oats)
- 1 tsp baking powder (helps the oatmeal set with a slightly lighter texture)
- 2 tsp ground cinnamon (plus extra for dusting the top before baking; Ceylon cinnamon is milder, Cassia is more intense)
- 1 tsp ground nutmeg (freshly grated nutmeg gives the best flavour if you have it)
- 1 tsp fine sea salt (balances the sweetness and enhances the overall flavour)
- 2 medium apples (Honeycrisp or Fuji recommended for sweetness and structure; Granny Smith adds tartness; peeled and diced — reserve a few thin slices for the decorative topping)
- 1.8 cups unsweetened almond milk (or any unsweetened plant milk; use 2 cups for a softer, more pudding-like result)
- 1 large egg (room temperature; helps bind and set the oatmeal — sub a flax egg for a vegan version)
- 2 tbsp pure maple syrup (grade A dark or amber for best flavour; do not substitute pancake syrup or corn syrup)
- 1 tbsp coconut oil (melted and cooled to room temperature so it does not scramble the egg when mixed)
- 1.5 tsp pure vanilla extract (use pure extract, not imitation, for the cleanest flavour)
- 1 tbsp ground flaxseed (adds omega-3 fatty acids and soluble fibre; can substitute chia seeds in equal quantity)
Instructions
- 1
Preheat your oven to 375°F (190°C). Lightly grease an 8x8-inch baking dish with a small amount of coconut oil or cooking spray.
A glass or ceramic baking dish distributes heat more evenly than metal and makes it easier to check doneness through the sides. Lightly greasing prevents sticking and ensures clean slices.
- 2
In a large mixing bowl, combine the rolled oats, baking powder, cinnamon, nutmeg, salt, and ground flaxseed. Stir until evenly mixed.
Stirring the dry ingredients together thoroughly before adding the wet mixture ensures the baking powder, spices, and salt are evenly distributed throughout every serving.
- 3
In a separate medium bowl or large measuring jug, whisk together the almond milk, egg, maple syrup, melted coconut oil, and vanilla extract until fully combined.
Make sure the melted coconut oil has cooled for at least one minute before adding it to the mixture — if it is too hot it can partially cook the egg, resulting in scrambled bits in your batter.
- 4
Add the diced apple to the dry oat mixture and toss to coat. Then pour the wet ingredient mixture over the oat and apple mixture and stir everything together until the oats are evenly moistened.
Tossing the diced apple with the dry oats before adding the liquid helps the apple pieces stay distributed throughout the dish rather than sinking to the bottom.
- 5
Pour the mixture into the prepared baking dish and spread it into an even layer. Arrange the reserved thin apple slices decoratively across the top, then dust lightly with extra ground cinnamon.
Pressing the reserved apple slices gently into the surface helps them stay in place during baking. A generous dusting of cinnamon across the top creates a beautiful golden finish.
- 6
Bake uncovered at 375°F (190°C) for 35 to 38 minutes, until the top is golden and the centre is set — it should not jiggle when you gently shake the pan.
Start checking at 35 minutes. The oatmeal is done when the edges are golden, the centre does not jiggle when you gently shake the pan, and a toothpick inserted in the middle comes out without wet batter clinging to it. Oven temperatures vary so check early rather than late.
- 7
Remove from the oven and allow the baked oatmeal to cool in the dish for at least 5 minutes before slicing into 6 equal squares. Serve warm as-is, or with a light drizzle of almond butter or a small dollop of Greek yogurt.
The oatmeal continues to firm up as it cools. Waiting the full 5 to 10 minutes makes a noticeable difference in how cleanly it slices. Serve warm as-is, or top with a light drizzle of almond butter, a spoonful of Greek yogurt, or a small handful of chopped walnuts for crunch.
Nutrition per serving
215kcal
Calories
7g
Protein
34g
Carbs
6g
Fat
5g
Fibre
8g
Sugar
145mg
Sodium
Pro Tips
- ✓
Use old-fashioned rolled oats only, not quick oats or steel-cut oats. Quick oats turn mushy and steel-cut oats stay too firm and chewy since they need much longer to cook. Rolled oats are the only variety that bakes to that perfect tender-but-structured texture.
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Peeling the apples is optional but recommended for a more uniform, tender texture. If you prefer a little extra texture and nutrients, leave the skin on, just make sure to scrub the apples well before dicing.
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For the most flavourful result, use two different apple varieties, one sweet like Honeycrisp or Fuji and one slightly tart like Granny Smith. The contrast gives the finished dish a more complex, interesting apple flavour compared to using a single variety.
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Do not skip the resting time after baking. The baked oatmeal continues to set as it cools and slices significantly more cleanly after 5 to 10 minutes. Cutting too soon will result in crumbly, uneven portions.
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For extra flavour depth, toast the dry rolled oats in a dry skillet over medium heat for 3 to 4 minutes before mixing, stirring frequently, until they smell lightly nutty and turn faintly golden. This optional step adds a wonderful toasted note that elevates the finished dish noticeably.
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If you prefer a softer, more pudding-like texture similar to overnight oats, increase the almond milk to 2 cups. For a firmer, more sliceable result that holds its shape well for meal prep, stick with 1¾ cups as written.
Frequently Asked Questions
Variations
- •
Apple Blueberry Baked Oatmeal
Reduce the diced apple to 1 apple and fold in 1/2 cup of fresh or frozen blueberries with the oat mixture before baking. The blueberries add antioxidants and a beautiful colour contrast.
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Apple Pear Baked Oatmeal
Replace one of the apples with one ripe but firm pear, diced to the same size. Pear adds a subtle floral sweetness that pairs beautifully with cinnamon.
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Almond Butter Swirl Baked Oatmeal
Before baking, drop 3 teaspoons of natural almond butter evenly across the surface and swirl gently with a toothpick. This adds healthy fats and a slightly richer flavour, adding approximately 25 calories per serving.
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Apple Cinnamon Raisin Baked Oatmeal
Stir 3 tablespoons of raisins into the oat mixture before baking for extra natural sweetness and chewiness. Note this will add a small amount of natural sugar per serving.
- •
Spiced Pumpkin Apple Baked Oatmeal
Replace 1/4 cup of the almond milk with 1/4 cup of pure pumpkin puree and add 1/4 teaspoon of ground ginger and 1/4 teaspoon of allspice to the dry ingredients for an autumn-inspired version.
Substitutions
- •Almond milk → Oat milk, soy milk, or low-fat dairy milk (Any unsweetened plant milk works well. Using dairy milk will slightly increase the calorie and protein content per serving.)
- •Maple syrup → Raw honey or date syrup (Use equal amounts. Note that honey is not vegan. Date syrup adds a deeper caramel-like flavour and slightly more fibre.)
- •Coconut oil → Light olive oil or melted unsalted butter (Any neutral-flavoured oil works. Light olive oil is a good lower-saturated-fat alternative.)
- •Egg → Flax egg (1 tbsp ground flaxseed + 3 tbsp water, rested 5 minutes) (Makes the recipe fully vegan. The texture will be very slightly less firm but still sets well.)
- •Rolled oats → Certified gluten-free rolled oats (Use a 1:1 swap. Do not substitute quick oats or steel-cut oats as they bake differently and will change the texture significantly.)
- •Ground flaxseed → Chia seeds (Use the same quantity. Chia seeds provide similar omega-3 and fibre benefits and blend into the oatmeal without changing the flavour.)
🧊 Storage
Store cooled, sliced baked oatmeal in an airtight container in the refrigerator for up to 5 days. Reheat individual portions in the microwave for 60 to 90 seconds. For longer storage, freeze individual wrapped portions for up to 3 months and reheat from frozen for 2 to 3 minutes in the microwave.
📅 Make Ahead
This recipe is perfectly suited for weekly meal prep. Bake the full dish on Sunday, allow it to cool completely, then slice into 6 portions and refrigerate. Each morning, reheat one portion in the microwave for about 90 seconds for a ready-made, nutritious breakfast. The flavours actually deepen overnight as the spices meld into the oats, making day-two portions arguably even better than fresh.
