Cut the cabbage half lengthwise through the core to get four wedges.
Heat a large cast-iron skillet or heavy- bottomed pan for which you have a lid over medium-high heat. Add 2 tablespoons of the olive oil. Once shimmering, add the cabbage, cut side down, and season with ½ teaspoon of the salt.
Using tongs, move the wedges back and forth gently to ensure they’re evenly coated in the oil, and cook until browned on the bottom, 5 to 7 minutes. Carefully flip, sprinkle with the remaining ½ teaspoon salt, and cook until browned on the other side, 5 to 7 minutes.
Transfer the wedges to a plate. Take the pan off the heat to cool down for 5 to 10 minutes (do some prep or cleanup in the meantime).
Stir the maple syrup into the canned tomatoes. Set aside.
Heat the remaining 1 tablespoon oil in the same pan over medium heat. Add the cumin seeds and cook, tossing frequently, until they are aromatic and darker in color, 1 minute. Add the shallots and garlic and cook for 2 minutes. Add the coriander, paprika, cinnamon, nutmeg, and Aleppo pepper and cook for 1 minute, stirring frequently.
Reduce the heat to medium-low. Pour in the tomato–maple syrup mixture with all the juices, stir, and carefully nestle the wedges back into the pan.
Cover and simmer until the cabbage is tender and the tomatoes have thickened a bit, 8 to 10 minutes, opening the pan once to check if the tomatoes are drying up (if so, add a few splashes of water).
Serve the cabbage straight from the pan. Top with cilantro and a squeeze of lemon juice. Spoon some tahini sauce generously on top and serve more on the side.