Vegetarian Shepherd's Pie II

From: AllRecipes

This was our first vegetarian recipe and has withstood
   the test of time, now one of our staple recipes. Prep
   Time: approx. 15 Minutes. Cook Time: approx. 1 Hour . Ready
   in: approx. 1 Hour 15 Minutes. Makes 8 servings.

2 cups vegetable broth, divided
1 teaspoon yeast extract spread
1/2 cup dry lentils
1/4 cup pearl barley
1 large carrot, diced
1/2 onion, finely chopped
1/2 cup walnuts, coarsely chopped
3 potatoes, chopped
1 teaspoon all-purpose flour
1/2 teaspoon water
salt and pepper to taste


Directions
1 Preheat oven to 350 degrees F (175 degrees C).
2 In a large saucepan over medium-low heat, combine 1 1/4
   cups broth, yeast extract, lentils and barley. Simmer for
   30 minutes.
3 Meanwhile, in a medium saucepan combine remaining 3/4
   cup broth, carrot, onion and walnuts; cook until tender,
   about 15 minutes.
4 Meanwhile, bring a large pot of salted water to a boil.
    Add potatoes and cook until tender but still firm,
   about 15 minutes. Drain and mash.
5 Combine flour and water and stir into carrot mixture;
   simmer until thickened. Combine carrot mixture with lentil
   mixture and season with salt and pepper. Pour mixture into a
   2 quart casserole dish. Spoon mashed potatoes over
   lentil mixture.
6 Bake in preheated oven until lightly browned on top,
   about 30 minutes.