Preheat oven to 400°F / 200°C. Place whole beets (with the skin on) on a rimmed baking sheet and roast for around 45-60 minutes, until you can easily insert a sharp knife into the center (baking time depends on the size of your beets). Remove from oven, let cool completely, then slip the skins off. Slice into bite-sized batons.

While the beets are roasting, cook the lentils. Drain and rinse well (if you’ve soaked them overnight), and place them in a pot, cover with plenty of fresh water, and bring them to a boil. Reduce to simmer, place a lid on the pot, and cook until tender (about 15-20 minutes if you’ve soaked them, a little longer if you haven’t). Salt the lentils a few minutes before they’re done – if you salt them at the beginning of cooking, the skins will be tough and they’ll take longer to soften. Drain and rinse lightly. Set aside.

While the lentils are cooking, prepare the dressing. Slice the shallot into very thin rings, then place them in the container that you’re going to use to store the salad. Add the salt and combine them well. Wait about 2 minutes, then add the lemon zest, juice and apple cider vinegar (these ingredients will lightly pickle the shallots, plus act a as a base for your dressing).

In a dry skillet over medium heat, toast the cumin seeds until fragrant, set aside to cool. Without washing the pan, toast the pumpkin seeds until fragrant and popping, then set aside to cool.

Back to the dressing: whisk in the honey and olive oil. Add the prepared beets, lentils, pomegranate seeds, olives, parsley, toasted cumin seeds, pumpkin seeds and flaky salt. Fold to thoroughly combine. Taste and add more salt if necessary (remember that the ingredients will absorb some salt while marinating, and that it will taste milder in the air).

You can either chop the romaine lettuce up and place it on top of the salad (don’t mix it in – it will get totally mushy), or you can leave the head whole and peel off the leaves and use them as little salad boats. If you’re going for the latter, wrap the washed head in beeswax cloth to keep it fresh.