Begin by preparing the aubergines: to do this cut them into ½ inch (1 cm) dice leaving the skins on. Now pre-heat the oven to gas mark 5, 375°F (190°C), and put the potatoes on to steam. Next, roughly chop all the vegetables, pile the whole lot into a food processor and process until chopped small. Next, melt the butter in a large frying pan over a medium heat, add the vegetables and cook gently for 10-15 minutes, stirring now and then until they’re softened and tinged gold at the edges. The obvious solution, of course, is to use a plant-based meat substitute, and Mob Kitchen recommends a pea, rice and soy protein-based brand for their recipe, which is mixed with sage, onion, chopped chestnuts and apricots, and nutmeg to produce something that looks much more like the fillings with which I’m familiar. The problem is that plant-based meats are incredibly low in fat, and cook to a crisp, leaving the filling sadly dry and, in this case, bland – I can’t detect much in the way of flavour from the “mince”. It might work better with another kind, but then you could also encase meat-free sausages in pastry without any guidance from me.

Most of the recipes I try include an umami-rich element in homage to the original meat filling. Cheese will do that job perfectly, of course, as well as adding fat, so if you use it, fold in grated hard cheese of your choice to taste (about 50g should do, but it will vary depending on strength; you’ll need less mature cheddar than red leicester, for example). Soy sauce is a popular vegan alternative, and makes an appearance in both Elliot’s and Young’s versions, with the latter also adding miso paste for an extra hit of savoury flavour; Bosh, meanwhile, use nutritional yeast, which always reminds me, not unpleasantly, of Quavers. All of these are excellent choices, but I like to keep things simple with a spoonful of Marmite, which is something I always have in the house anyway. If you don’t care for it, choose one of the above instead. The seasoning

Cover and cook gently for 6 minutes, then drain, reserving the water. Now heat the oil in a pan and fry the onion until softened. Then stir in the turmeric, coriander, cumin seeds, ginger and garlic, followed by the lentils, and stir until everything is thoroughly combined before pouring in the reserved vegetable water. Now bring to the boil, cover and cook gently for 40 minutes, or until the lentils are just tender. Next drain the spinach in a colander and, when it's cool enough to handle, squeeze it in your hands to get rid of every last drop of liquid. Then place it on a chopping board and chop it finely. Now put it into a bowl, add the ricotta, then approximately 5 fl oz (150 ml) of the sauce. Give it a good seasoning of salt and pepper and add the grated nutmeg. Then mix everything together really thoroughly and, finally, fold in the crumbled Gorgonzola. Having combed my bookshelves, and the internet, I’ve concluded that meat-free sausage rolls fall into a number of broad camps. The first, represented here by Christmas queen Delia Smith, though also favoured by the likes of Gary Rhodes and Prue and Peta Leith, relies on cheese. Cheddar, in Smith’s case, flavoured with grated onion and chopped herbs, bulked out with soft breadcrumbs and moistened with cream. And I can see why so many of you recommended them to me – they’re as rich and satisfyingly greasy (and I mean that in a good way) as the real thing, with an emphatically savoury flavour. My concern, however, apart from the fact that they occupy much the same party-food space as a cheese straw, is that they’re not vegan-friendly. First make up the stuffing by melting the butter in a small heavy-based saucepan, then add the onions and cook them for about 6 minutes or until they are transparent. Delia Smith’s veg sausage rolls: cheddar, breadcrumbs and cream. Thumbnails by Felicity. The ‘meat’

Mix the ricotta with the toasted pine nuts and about three-quarters of the pecorino. Season to taste. Now you need to place a small frying pan over a medium heat, add the pine nuts and dry-fry them for about 1 minute, tossing them around to get them nicely toasted but being careful that they don't burn. Then remove the pan from the heat and assemble the lasagne. To do this, spread a quarter of the sauce into the bottom of the dish and, on top of that, a third of the spinach mixture, followed by a scattering of toasted pine nuts. Now place sheets of pasta on top of this – you may need to tear some of them in half with your hands to make them fit. Now repeat the whole process, this time adding a third of the grated Mozzarella along with the pine nuts, then the lasagne sheets. Repeat again, finishing with a layer of pasta, the rest of the sauce and the remaining Parmesan and Mozzarella. First, soak the vine leaves in boiling water for 20 minutes, then drain and spread out each leaf flat – vein side uppermost.Lastly, I try the recipe that inspired this column in the first place, Kate Young’s vegetable-based “not-sausage rolls” from her new book, The Little Library Christmas. They are, as she promises, deeply savoury, with a base of sauteed leek and mushroom mixed with spinach, breadcrumbs and various umami-rich seasonings – in short, they’re deliciously moreish, but they don’t feel very Christmassy to me. Weigh this down with a heavy object (like scale weights) and after 30 minutes quite a bit of water will have been drawn out. Dry them really thoroughly in a clean cloth and then they're ready to cook. Heat the oil in a frying pan large enough to hold the courgettes in one layer (otherwise do them in two batches), add the crushed garlic and sauté the courgette slices to a nice golden colour on each side. Next arrange layers of courgettes, cheese slices and sliced tomatoes in a heatproof gratin dish so that they overlap each other slightly like slates on a roof. You can watch how to skin tomatoes in our Cookery School Video. When the aubergines and peppers are cool enough to handle, scoop out the flesh of the aubergines and mash up any large pieces. Peel the peppers, remove the seeds and finely chop the flesh, then add to the aubergine.