Dairy Free Breakfast Casserole with Sweet Potato and Kale

Name: Dairy Free Breakfast Casserole with Sweet Potato and Kale
Prep time: 20 min
Cook time: 55 min
Total time: 1 h 15 min
Yield: 6 servings
Cuisine: American
Ingredients: 2 medium sweet potatoes (peeled and cut into 1cm cubes); 1 tbsp olive oil (for roasting the sweet potato); 200 g turkey sausage (casings removed, crumbled); 3 cups kale (stems removed, leaves roughly chopped); 4 spring onions spring onions (thinly sliced, white and green parts); 3 cloves garlic (minced); 8 large eggs (free range if possible); 1/2 cup unsweetened almond milk (or oat milk for nut free); 3 tbsp nutritional yeast (adds savoury depth without dairy); 1 tsp smoked paprika; 1/2 tsp ground cumin; 1/2 tsp garlic powder; 1/4 tsp ground black pepper; 1/2 tsp fine sea salt (or to taste); 1/2 tsp dried oregano; 1 tbsp olive oil (for cooking the sausage and kale); 1/4 tsp chilli flakes (optional, for a little heat)

High ProteinDairy-FreeGluten-FreeMeal Prep

Prep Time20 min

Cook Time55 min

Servings6

Calories278 kcal

Health Score7/10

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This dairy free breakfast casserole with sweet potato and kale has become one of those recipes that genuinely earns its place in a weekly rotation. It is hearty without being heavy, colourful without being fussy, and satisfying in a way that keeps you full well past lunchtime. The sweet potato brings natural sweetness and a gorgeous golden colour to every slice, while the kale adds that earthy, slightly bitter contrast that makes the whole dish feel balanced and vibrant. Eggs bind everything together beautifully, giving each serving a solid protein hit without relying on any dairy at all.

Traditional breakfast casseroles often call for cheese, cream or full-fat milk, which can push the calorie count and saturated fat well beyond what your morning really needs. This version swaps all of that out entirely. Instead of cream, you get richness from olive oil and the starchy creaminess of the sweet potato itself. Instead of cheese on top, a sprinkle of nutritional yeast gives a subtle savoury depth that genuinely satisfies that umami craving. The result is a casserole that clocks in at around 280 calories per serving, with 18 grams of protein and nearly 5 grams of fibre. That is a breakfast that actually works hard for you.

The ingredients here are all straightforward. Sweet potatoes are one of the best breakfast vegetables going, rich in beta-carotene, vitamin C and slow-releasing complex carbohydrates that prevent the mid-morning energy crash. Kale is a powerhouse of vitamin K, folate and antioxidants, and when it is cooked into a warm casserole like this it loses any toughness and becomes tender and almost silky. The turkey sausage adds extra protein and a gentle savoury warmth, and you can swap it for chicken sausage or leave it out entirely if you want a fully vegetarian version. A handful of spring onions, some garlic, smoked paprika and a little cumin round out the seasoning without any fuss.

Making this casserole is genuinely simple. You roast the sweet potato cubes first so they get a little caramelised and sweet around the edges, then everything comes together in one baking dish. You can absolutely put this together the night before and just pop it in the oven in the morning, which makes it ideal for busy weekday mornings or for feeding a group at the weekend. Leftovers keep well in the fridge for up to four days, and each slice reheats beautifully in the microwave or a low oven. Once you have made it once, you will find yourself coming back to it every single week.

Ingredients

Serves:6

2 medium sweet potatoes (peeled and cut into 1cm cubes)
1 tbsp olive oil (for roasting the sweet potato)
200 g turkey sausage (casings removed, crumbled)
3 cups kale (stems removed, leaves roughly chopped)
4 spring onions spring onions (thinly sliced, white and green parts)
3 cloves garlic (minced)
8 large eggs (free range if possible)
1 cup unsweetened almond milk (or oat milk for nut free)
3 tbsp nutritional yeast (adds savoury depth without dairy)
1 tsp smoked paprika
1 tsp ground cumin
1 tsp garlic powder
1 tsp ground black pepper
1 tsp fine sea salt (or to taste)
1 tsp dried oregano
1 tbsp olive oil (for cooking the sausage and kale)
1 tsp chilli flakes (optional, for a little heat)

Instructions

1
Preheat your oven to 200C (180C fan, 400F). Line a large baking tray with baking paper. Spread the sweet potato cubes in a single layer, drizzle with 1 tablespoon of olive oil, and season lightly with salt and pepper. Roast for 20 to 25 minutes until the edges are starting to caramelise and the cubes are just tender when pierced with a fork.
Do not crowd the tray. Crowded sweet potato steams rather than roasts and you lose that lovely caramelised edge.
2
While the sweet potato roasts, heat 1 tablespoon of olive oil in a large non-stick skillet over medium-high heat. Add the crumbled turkey sausage and cook, breaking it apart with a wooden spoon, for 5 to 6 minutes until browned and cooked through. Transfer to a plate lined with kitchen paper and set aside.
3
In the same skillet, reduce the heat to medium and add the spring onions and garlic. Cook for 1 to 2 minutes until softened and fragrant. Add the chopped kale and stir frequently for 3 to 4 minutes until the kale has wilted down significantly and is dark and tender. Remove from the heat.
If the kale seems dry, add a small splash of water to the pan to help it steam and wilt more quickly.
4
Lower the oven temperature to 180C (160C fan, 350F). Lightly grease a 9x13 inch baking dish with a little olive oil. Spread the roasted sweet potato cubes evenly across the bottom of the dish. Scatter the cooked turkey sausage over the top, then add the wilted kale and spring onion mixture, distributing everything evenly.
5
In a large mixing bowl or jug, whisk together the eggs, almond milk, nutritional yeast, smoked paprika, cumin, garlic powder, oregano, salt, pepper and chilli flakes if using. Whisk until the mixture is smooth and fully combined.
Whisk the eggs vigorously for about 30 seconds to get plenty of air in. This helps the casserole set with a slightly lighter texture.
6
Pour the egg mixture slowly and evenly over the vegetables and sausage in the baking dish, making sure every corner gets covered. Use a fork to gently press down any kale that is poking up above the egg mixture so it is fully submerged.
7
Bake in the preheated oven for 28 to 32 minutes, until the egg is fully set in the centre and the edges are lightly golden. To check doneness, insert a knife into the centre. It should come out clean with no liquid egg. Allow the casserole to rest for 5 minutes before slicing into 6 portions and serving.
Resting the casserole for a few minutes makes it much easier to slice cleanly without the pieces falling apart.

Nutrition per serving

278kcal

Calories

18g

Protein

22g

Carbs

12g

Fat

4.8g

Fibre

Sugar

420mg

Sodium

Pro Tips

✓
Massage the kale briefly with a tiny bit of olive oil before cooking if the leaves are very tough. This softens them faster.
✓
For extra flavour, add a teaspoon of Dijon mustard to your egg mixture before whisking.
✓
If your sweet potatoes are very large, 1.5 medium potatoes is usually enough to avoid the casserole becoming too dense.
✓
Let the casserole cool completely before covering and refrigerating. Trapping steam makes it watery.
✓
A pinch of turmeric in the egg mixture adds a golden colour and a gentle anti-inflammatory boost.
✓
You can use frozen kale in a pinch. Thaw it fully and squeeze out as much water as possible before using.

Frequently Asked Questions

Can I make this dairy free breakfast casserole ahead of time?↓

Absolutely. You can assemble the entire casserole the night before, cover it tightly with cling film or foil and refrigerate it unbaked. In the morning, remove it from the fridge while the oven preheats, then bake as directed. You may need to add 3 to 5 extra minutes to the bake time since it will be cold from the fridge.

How long does this casserole keep in the fridge?↓

Stored in an airtight container or tightly wrapped in the baking dish, this casserole keeps well in the fridge for up to 4 days. Reheat individual slices in the microwave for 60 to 90 seconds, or warm the whole dish in a 160C oven for about 15 minutes.

Can I freeze this sweet potato and kale casserole?↓

Yes, this casserole freezes well. Allow it to cool completely, then slice into individual portions and wrap each one tightly in cling film before placing in a freezer-safe bag or container. It will keep for up to 2 months. Thaw overnight in the fridge before reheating.

Is this casserole gluten free?↓

Yes, all the ingredients in this recipe are naturally gluten free. Just make sure to check the label on your turkey sausage, as some brands add fillers or breadcrumbs that may contain gluten.

Can I make this vegetarian?↓

Definitely. Simply leave out the turkey sausage and add an extra cup of kale, some diced red pepper or a handful of cherry tomatoes instead. You will still get a filling, protein-rich casserole from the eggs and nutritional yeast.

What can I use instead of almond milk?↓

Any unsweetened plant-based milk works well here. Oat milk gives a slightly creamier result, coconut milk from a carton (not the full-fat canned version) is another great option, and soy milk adds a small extra protein boost. Just make sure whichever milk you use is unsweetened.

Variations

•
Vegetarian Version
Leave out the turkey sausage entirely. Add 1 cup of diced red bell pepper and a handful of cherry tomatoes halved for extra colour and nutrition. The casserole is still very satisfying thanks to the eggs and sweet potato.
•
Spicy Southwest Style
Add 1 diced jalapeno, 1 teaspoon of chipotle powder instead of smoked paprika, and a handful of black beans to the casserole before pouring over the egg mixture. Top with fresh salsa and sliced avocado when serving.
•
Mediterranean Twist
Replace the turkey sausage with 100g of sun-dried tomatoes and a handful of sliced Kalamata olives. Swap the cumin and paprika for dried basil and a pinch of cinnamon. The sweet potato pairs beautifully with these flavours.
•
High Protein Boost
Add 2 extra egg whites to the mixture and stir in 100g of canned white beans, drained and rinsed. This pushes the protein per serving up closer to 22 to 24 grams and adds extra fibre from the beans.

Substitutions

•
Turkey sausage → Chicken sausage or beef sausage (Any good quality non-pork sausage works well. Remove the casing and crumble before cooking.)
•
Kale → Baby spinach or Swiss chard (Spinach wilts much faster, so reduce the cooking time in the skillet to about 1 minute. Swiss chard works almost identically to kale.)
•
Almond milk → Oat milk, soy milk or coconut milk (carton) (Use unsweetened versions only. Avoid canned full-fat coconut milk as it will make the texture too dense.)
•
Nutritional yeast → Omit or use 1 tsp miso paste (Nutritional yeast adds savoury depth. If you skip it, add a small extra pinch of salt and garlic powder to compensate. Miso stirred into the egg mixture also works beautifully.)
•
Sweet potatoes → Butternut squash or regular white potatoes (Butternut squash has a similar sweetness and roasting time. White potatoes work well but are lower in beta-carotene and have a slightly higher glycaemic index.)
•
Spring onions → Half a small white onion, finely diced (Cook the white onion in the skillet for 3 to 4 minutes before adding garlic, as it takes longer to soften than spring onions.)

🧊 Storage

Store leftover casserole in an airtight container in the refrigerator for up to 4 days. Reheat slices in the microwave on medium-high for 60 to 90 seconds, or in a 160C oven for 12 to 15 minutes. For freezing, wrap individual portions tightly and freeze for up to 2 months. Thaw overnight in the fridge before reheating.

📅 Make Ahead

Assemble the unbaked casserole the night before, cover tightly and refrigerate. Remove from the fridge 10 minutes before baking and add 3 to 5 extra minutes to the bake time. Alternatively, bake the casserole fully, allow to cool, and refrigerate for up to 4 days. It reheats beautifully for quick weekday breakfasts.