Cut the onion into 8 wedges ,the red pepper into 4 pieces. Rub them with half of the oil.
Heat the oil in a griddle pan and fry the onion and red pepper pieces, until lightly charred.
Meanwhile, drain the lentils and put them in a mixing bowl.
Add the vinegar, the remaining oil, and the minced garlic. Toss well.
Steam the kale for 5 minutes over boiling water. Drain, rinse under cold water, then add to the lentils.
When the veggies are tender, put them on a plate. Remove the skins, then cut the pepper into long strips.
Add the grilled onion and pepper pieces to the salad.
Fold in the chopped coriander leaves.
Season with salt and pepper to your liking.
Toss well, taste and adjust it to your liking, for example add more oil, if needed.