Spinach and Feta Toastie
Feta doesn't melt, so a spinach and feta toastie made with feta alone falls apart into dry crumbs and wet leaves. The fix is a binder cheese: mix crumbled feta with grated mozzarella, then add spinach that has been wilted and squeezed bone-dry. You get salty, tangy pockets held in a stretchy melt, toasted in around 4 minutes.
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Recipe: Spinach and feta toastie
Ingredients
- 2 slices medium white or wholemeal bread
- 80g baby spinach (or 60g frozen spinach, defrosted)
- 40g feta, crumbled
- 30g low-moisture mozzarella, grated
- 1 tbsp cream cheese
- ¼ tsp dried oregano or a few fresh dill fronds
- A pinch of chilli flakes and a grating of nutmeg
- 10g softened butter for the outside
Method
- Put the spinach in a sieve and pour over a kettle of boiling water until fully wilted (or microwave it covered for 1 minute). Cool under the cold tap.
- Squeeze the spinach in your hands, then wrap it in a clean tea towel and twist hard until no more water comes out. You should be left with a firm ball of about 35–40g. Chop it roughly.
- Preheat the toastie maker with the lid closed.
- In a bowl, mash the feta, mozzarella, cream cheese, oregano, chilli and nutmeg together with a fork, then fold in the spinach.
- Butter one side of each slice. Place one slice butter-side down on the bottom plate and spread the filling over it in an even layer, leaving a 1cm border.
- Top with the second slice, butter-side up, and close the lid gently.
- Cook for 3½–4 minutes until golden. Rest 1 minute, then cut.
Why the binder and the squeeze matter
Feta is a brined cheese with a firm, acidic curd. When heated it softens and goes creamy at the edges, but it never flows like cheddar or mozzarella. On its own in a toastie it stays in separate crumbs, so nothing holds the slices together and the filling tumbles out when you cut it.
Mozzarella supplies the melt and the cream cheese turns the mix into a spreadable paste that clings to the spinach. Mashing everything together before it goes into the bread means every bite has salt, tang and stretch rather than a pocket of dry feta next to a pocket of leaves. For other melter combinations, see our best cheese for toasties guide.
Spinach is the bigger risk. 80g of raw leaves holds over a tablespoon of water even after wilting. Leave it in and it turns to steam in the sealed plates, softening the bread from inside and pushing liquid out through the crimped edge. The tea-towel twist is the step people skip and regret. If your toasties keep weeping, our guide to stopping toasties leaking explains the moisture rules.
Timings for other machines and methods
Deep fill toastie makers and panini presses
A deep fill machine takes the filling scaled by half again (120g raw spinach, 60g feta, 45g mozzarella); cook for 5 minutes. On a panini press, the paste version is ideal because it doesn't slide out of an unsealed sandwich. Allow 4–5 minutes.
Pan, air fryer and microwave toastie makers
Fry over medium-low for 3 minutes a side, pressing with a spatula (see the frying pan toastie method). In the air fryer, 180°C for 8 minutes, turning halfway. In a microwave toastie maker, the filling works well but reduce it by a quarter; our microwave toastie recipes page lists timings by wattage.
Variations
- Spanakopita-style: add 1 sliced spring onion and a little fresh dill to the paste, and use 1 tsp lemon zest.
- Sun-dried tomato: 3 chopped sun-dried tomatoes, patted dry of oil. Keep them in the centre, as the oil can loosen the seal.
- Spinach, feta and chicken: 40g shredded cooked chicken folded into the paste. Cook 30 seconds longer.
- Halloumi swap: replace the feta with 40g grated halloumi for a squeakier, milder filling.
- Pitta pocket: spread the filling inside a split pitta and toast for 3 minutes for a crisp, thin version.
Mistakes to avoid
- Using raw spinach leaves: they shrink to almost nothing and release all their water inside the toastie.
- Adding extra salt: feta is already salty, often around 2.5–3g salt per 100g. The filling doesn't need more.
- Feta in big cubes: large lumps stop the top slice sitting flat and make the lid hard to close. Crumble finely.
- Ignoring the plates: brine and cream cheese can catch on worn coatings. If yours sticks, read why your toastie is sticking.
Looking for another vegetarian option? Try the caprese toastie or mushroom and gruyère toastie, or browse all our toastie recipes. If you're still choosing a machine, start with the best toastie maker guide.
FAQs
Can I use frozen spinach?
Yes, and it's often easier. Defrost 60g of frozen chopped spinach, then squeeze it just as hard as fresh. Frozen spinach holds even more water, so the tea towel step matters.
Is a spinach and feta toastie vegetarian?
Not always. Traditional feta and some other cheeses are made with animal rennet. Check the pack for a vegetarian symbol if that matters to you.
Can I make the filling ahead?
The paste keeps for 2 days in a covered container in the fridge. Spread it straight from cold and add 30 seconds to the cooking time.