>>212934554
Hmm... I wonder if maybe cooking them on low heat for a good period of time can soften them, that's what I did together with the onion and burgers, but they were already soft and nommable from the can.
Lentils can be a bit hard for my teeth sometimes. I swear to God I sometimes feel like I'll get a tako tsubo infarction when I bite on something hard without noticing and I hear that "crack".