To make the hummus, put the squash on a baking sheet and toss with the garlic, cumin, ground coriander, paprika and 1 tbsp oil. Roast at 180C/160C fan/gas 4 for 20 mins or until the squash is tender. Leave to cool. Put the squash in a food processor, add the garlic (squeezing the flesh out of the skins) along with the chickpeas and tahini, then blitz until smooth – loosen with 1 tbsp water if needed. Season. Mix the rest of the oil with the coriander seeds to drizzle over the hummus.
To make the onion dip, put the shallots and spring onions in a roasting tin and drizzle with the oil. Roast at 180C/160C fan/gas 4 for 25-30 mins or until golden and soft. Leave to cool, then blitz in a food processor with the yogurt, garlic and half the chives until smooth. Season. Serve sprinkled with the remaining chives.
For the beetroot dip, blitz everything in a food processor, except the yogurt and sesame seeds, until smooth. Swirl in the yogurt and sprinkle with the sesame seeds.
Serve the dips on a board with the veg crudités and breadsticks and crispbreads, if you like.