1.Cook lentils according to package instructions.
2.Line a loaf pan with parchment paper and preheat your oven to 350 °F (175 °C).
3.In a non-stick pan, sauté onion, garlic and mushrooms in a splash of water, stirring frequently.
4.After a few minutes, add the soy sauce and carrot. Keep cooking until all of the liquid has evaporated.
5.Transfer the cooked lentils along with the sautéed vegetables and the rest of the ingredients for the loaf into a food processor.
6.Pulse a few times to incorporate and be sure not to over-process the mixture! It should still be textured, not smooth.
7.Put the lentil mushroom batter into your prepared loaf pan and pack it down firmly to make sure it stays together.
8.Combine all ingredients for the glaze in a small bowl and mix together. Spread it over the top of your lentil mushroom loaf, then place it into the oven for 45 minutes.
9.Once this time has elapsed, remove the lentil loaf from the oven and set it aside to cool for 10 minutes before taking it out of the pan and cutting it into slices.