Let’s be honest — food prices these days are wild. I’ve always hated throwing food out, but now that groceries feel like they cost an arm and a leg, I’m extra committed to making the most of every last bite. That’s exactly how this Leftover Potato Omelette Soufflé came to be.

So when I found myself with a mountain of leftover potatoes from dinner (we’d had best pan-fried tilapia (a 5 min prep recipe!) — the kids devoured the fish and begged for more, but left the potatoes behind!), I knew I needed to repurpose them into something actually crave-worthy.

That’s when I remembered this omelette-suflê I used to make when I was younger. It’s light, fluffy, cheesy, and packed with flavor — and even better, it makes leftovers feel brand new. It worked perfectly the next morning for breakfast, but honestly, it makes a fantastic lunch or even a quick weeknight dinner with a salad.

📝 Ingredients & Substitutions
Here’s what you’ll need — plus some easy swaps in case you don’t have everything on hand:
- 6 egg whites
- 1 tablespoon baking powder
- 6 egg yolks
- 1/2 cup milk – any milk works (dairy or unsweetened plant-based)
- 100g smoked farmers sausage’s, chopped and pan-fried – or sub with ham, or even bacon bits
- 100g grated parmesan cheese – or use any sharp cheese like cheddar or grana padano
- 1 small onion, finely chopped
- 2 tablespoons chopped parsley – or any fresh herbs you have
- 150g leftover potatoes – can be roasted, pan-fried, or even french fries from last night’s takeout. Just make sure they are not raw.
- Salt and pepper, to taste
- Optional: 50g chopped tomatoes
Tip: If your leftover potatoes are already seasoned, just adjust your salt accordingly!
🍳 How to Make It
Whip egg whites until stiff, then fold them into a savoury mix of yolks, milk, sausage, cheese, herbs, and leftover potatoes. Cook the mixture in a non-stick skillet over low heat until golden, then flip and cook the other side. Slice and serve warm — it’s light, fluffy, and deliciously satisfying.
🍽 How to Serve
This omelette-suflê is super versatile. Serve it:
- Warm, with a side salad for a complete meal
- As part of a brunch spread with toast and fruit
- Cut into squares for easy finger food at potlucks or family get-togethers
🧊 How to Store
Leftovers (if you have any!) store really well:
- Fridge: Keep in an airtight container for up to 3 days. Reheat gently in the microwave or in a skillet with a splash of water and lid to retain moisture.

💡 Final Thoughts
This dish is everything I love in a recipe: budget-friendly, no-waste, totally adaptable, and a hit with the whole family. Whether you’ve got leftover roasted potatoes, fries, or even the odds and ends of cheese and herbs, this is a simple and satisfying way to bring them all together.
Let me know if you give it a try — and what twist you add to make it your own!

Leftover Potato Omelette Soufflé (Easy, No-Waste Recipe)
Equipment
- Large non-stick skillet with lid
- Electric mixer or whisk (for beating egg whites) (for beating egg whites)
- Plate or pizza pan (for flipping the Omelette)
Ingredients
- 6 egg whites
- 1 tablespoons baking powder
- 6 egg yolks
- 1/2 cup milk dairy or plant-based
- 100 g smoked farmer’s sausage pan-fried and sliced* (about 1/2 cup)
- 100 g grated parmesan cheese or cheddar, grana padano etc (about 1 cup)
- 1 small onion finely chopped
- 2 tablespoons chopped parsley or fresh herbs
- 150 g leftover potatoes roasted, pan-fried, or leftover fries (about a heaping cup)
- Salt and pepper to taste
- Optional: 50g chopped tomatoes
Instructions
- Beat egg whites until stiff peaks form, then gently fold in baking powder.6 egg whites, 1 tablespoons baking powder
- In another bowl, mix egg yolks, milk, sausage, cheese, onion, herbs, potatoes, salt, pepper, and tomatoes (if using).6 egg yolks, 1/2 cup milk, 100 g smoked farmer’s sausage, 100 g grated parmesan cheese, 1 small onion, 2 tablespoons chopped parsley or fresh herbs, 150 g leftover potatoes
- Carefully fold the egg whites into the yolk mixture.
- Heat skillet over low heat, lightly oiled. Pour in mixture, cover, and cook 8–10 minutes until bottom is golden and mostly set.
- Flip omelette using a large plate or pan, cook other side 5–7 minutes until golden and cooked through.
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