Miso-Glazed Aubergine and Lentil Traybake with Crispy Shallots

# Miso-Glazed Aubergine and Lentil Traybake with Crispy Shallots

There's something quietly brilliant about a traybake — everything goes in together, the oven does the heavy lifting, and what comes out is somehow greater than the sum of its parts. This one takes that idea and runs with it, pairing the smoky, caramelised depth of miso-glazed aubergine with earthy lentils and shallots that crisp up like little golden rings around the edges of the tray.

It's the kind of meal that earns a permanent spot in your weekly rotation.

What You'll Need (Serves 4)

For the traybake:

• 2 large aubergines, cut into 3cm chunks
• 400g cooked green or puy lentils (a tin is absolutely fine)
• 8 banana shallots, peeled and halved lengthways
• 3 tbsp olive oil
• 3 garlic cloves, finely grated
• 1 tsp smoked paprika
• ½ tsp ground cumin
• Salt and black pepper

For the miso glaze:

• 2 tbsp white miso paste
• 1 tbsp rice vinegar
• 1 tbsp maple syrup or honey
• 1 tbsp sesame oil
• 1 tbsp warm water (to loosen)

To serve:

• Handful of fresh coriander or flat-leaf parsley
• 1 tbsp toasted sesame seeds
• A wedge of lemon or lime
• Optional: a dollop of tahini thinned with lemon juice, or plain yoghurt

How to Make It

Preheat your oven to 220°C fan (200°C conventional). Line a large roasting tray — and this part genuinely matters — make sure it's large enough that nothing is piled on top of itself. Overcrowding is the enemy of caramelisation.

Toss the aubergine chunks and halved shallots in the olive oil, garlic, smoked paprika, cumin, and a generous pinch of salt. Spread them out in a single layer on the tray and roast for 20 minutes.

While those are in the oven, whisk together all the miso glaze ingredients in a small bowl until smooth. The warm water is just there to help it come together — you want a consistency that's pourable but still coats a spoon.

After 20 minutes, pull the tray out. The aubergine should be softening and starting to colour at the edges. Drain and rinse your lentils, then scatter them across the tray. Spoon over about two-thirds of the miso glaze and toss everything gently so it's well coated.

Return to the oven for another 15–20 minutes, until the aubergine is deeply golden, the shallots are crispy at the tips, and the lentils have picked up some colour where they're touching the tray. Drizzle over the remaining glaze straight from the oven.

Scatter with fresh herbs, sesame seeds, and a squeeze of citrus before serving.

What Makes This Work Nutritionally

This isn't just a good traybake — it's a well-balanced plate doing a lot of things at once without you having to think too hard about it.

Aubergine is low in calories but high in volume, meaning it takes up a lot of space on the tray (and on your plate) without contributing much in the way of energy. It's a decent source of fibre and contains nasunin, an antioxidant found in the skin that's shown some promise in early research for protecting cell membranes.

Lentils are the nutritional backbone of this dish. A 100g serving of cooked lentils delivers around 9g of protein and 8g of fibre, alongside iron, folate, and magnesium. They're one of the most protein-dense plant foods available, and because they're already cooked here, they absorb the glaze beautifully rather than just sitting in it.

Miso paste brings far more than flavour. It's a fermented food, meaning it contains live bacteria that may support gut health — though the high oven temperature will reduce the probiotic activity. What it does retain is a remarkable depth of umami, plus small amounts of zinc and B vitamins.

Shallots, when roasted at high heat, develop a natural sweetness as their sugars caramelise. They also contain quercetin, a flavonoid with anti-inflammatory properties, at higher concentrations than regular onions.

The combination of fibre from both aubergine and lentils, protein from the lentils, and healthy fats from the olive oil and sesame oil means this is a genuinely satisfying meal — not just on paper, but in practice.

Why Miso Works So Well Here

Miso is one of those ingredients that makes everything taste like you've been cooking for longer than you have. It's made by fermenting soybeans (and sometimes grains like rice or barley) with a mould called koji, and the result is a paste that's simultaneously salty, savoury, and slightly sweet, with a complexity that's hard to replicate.

White miso (shiro miso) is the mildest variety — fermented for a shorter period, it's less intense than red miso and works brilliantly as a glaze because it caramelises quickly without burning. That browning is the Maillard reaction at work, the same chemical process that makes toast smell incredible and gives seared meat its crust.

When you combine miso with rice vinegar for acidity, a touch of sweetness, and sesame oil for nuttiness, you get a glaze that hits every flavour note. It clings to the aubergine, seeps into the lentils, and turns the shallots into something almost lacquered.

Common Mistakes to Avoid

Don't salt the aubergine and forget about it. Some older recipes suggest salting aubergine to draw out bitterness, but modern varieties have largely had this bred out of them. What does matter is making sure the pieces are dry before they go into the oven — pat them with kitchen roll if needed.

Don't add the lentils too early. If you throw everything in at the start, the lentils will dry out and turn chalky. Adding them halfway through gives them enough time to absorb flavour and pick up colour without losing their texture.

Don't crowd the tray. This point is worth repeating. If the tray is too small, the vegetables steam rather than roast, and you lose all that caramelisation. If you only have a small tray, use two — or do it in batches.

Don't skip the finishing glaze. That last drizzle of raw miso glaze over the hot tray adds a fresh, slightly sharper flavour that contrasts beautifully with what's been in the oven.

Variations Worth Trying

This recipe is a good base to riff on. A few directions worth exploring:

Swap the lentils for chickpeas if that's what you've got. They'll crisp up even more at the edges, which is excellent.

Add cubed firm tofu alongside the aubergine for extra protein — press it first, then toss it in the spices with everything else.

Stir through a handful of spinach or kale in the last five minutes if you want to add some leafy greens without any extra effort.

For a more substantial meal, serve it over brown rice, freekeh, or flatbreads — the glaze acts almost like a sauce when everything is piled together.

A poached egg on top isn't traditional, but it works very well if you want to bump up the protein further.

Practical Takeaways

• Use a tin of ready-cooked lentils — there's no need to cook them from scratch for a weeknight traybake.
• White miso is the mildest option and least likely to overpower; red miso can be used but halve the quantity.
• The recipe scales easily — double everything and use two trays if you're cooking for a crowd or want leftovers.
• Leftovers keep well in the fridge for three days and reheat well with a splash of water to loosen the glaze. It also works cold as a salad base.
• The miso glaze itself takes about two minutes to make and stores in a jar in the fridge for up to two weeks — use it on roasted carrots, salmon, or tofu.

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