Step 1

Heat the oil in a large saucepan or braiser over medium heat

Step 2

Once the oil is glistening, add the carrots, celery, and onions and cook until softened, about 6 minutes

Step 3

Add the garlic and cook until fragrant, about 1 minute more.Add the walnuts and lentils, stir to combine

Step 4

Add the stock, marinara, wine, garlic powder, Italian seasoning, pepper, and salt

Step 5

Stir to combine again, then increase the heat to high and bring to a boil

Step 6

Reduce the heat to medium-low and cook, stirring occasionally, until the sauce thickens and the lentils are cooked to your liking, about 35 minutes.Transfer 2 cups of the sauce to a blender or food processor and blend until mostly smooth

Step 7

Return the blended sauce back to the pan and stir to combine

Step 8

Taste and add more salt as needed

Step 9

Serve the bolognese over your favorite pasta, topped with Parmesan if desired.