In a large sauce pan, heat 1 tbsp. olive oil over medium-high heat. Add the onion, garlic, bay leaf and thyme.
Cook for 5 minutes, stirring occasionally until the onion is soft and translucent.
Add the lentils, stir to combine, and add 4 cups water.
Reduce heat to low and cook for 40 minutes, until lentils are soft but not mushy.
Once the lentils are done, stir in the chopped kale.
For the sausage:
Slice sausage into 2 lengthwise pieces.
In a lightly-sprayed skillet, add the sausage and brown on both sides, 2-3 minutes.
For the Gravy:
In a sauce pan, melt the butter over medium heat.
Once melted, whisk in the flour to combine. Stir the flour and butter mixture often, until slightly browned and smells nutty.
Whisk in the vegetable broth, soy sauce, and nutritional yeast until combined completely. Reduce the heat to low and cook until thick, about 5 minutes.
While the gravy is cooking, dissolve the miso paste in 2 tbsp. water.
Once the gravy is thick, remove from heat and whisk in the miso paste.