Vegetable Shepherds Pie

Ingredients

• Potatoes — 3 lb
• Small Potatoes — 3 lb
• Salted Butter — 0.5 cup
• Mushrooms — 1 oz
• Brown Lentils — 0.75 cup
• Garlic — 6 pcs
• Kosher Salt — 1 tsp
• Onion — 3 cup
• Tomato Puree — 2 tbsp
• Bay Leaves
• Olive Oil
• Dry White Wine — 2 cup
• Vegetable Stock — 8 cup
• Cornstarch — 2 tbsp
• Soy Sauce — 2 tsp
• Rosemary — 2 pcs
• Parsley
• Sage
• Chives

Steps

1. Add Ingredients:
2. cups chopped mixed vegetables
3. cup chopped fresh mushrooms
4. cup pearl onions
5. TOPPING:
6. Preheat oven to 450°. Bake potatoes on a foil-lined baking sheet until tender, about 45 minutes. Let cool slightly, then peel. Press potatoes through a ricer, food mill, or colander into a large bowl. Add butter; stir until well blended. Stir in milk. Season to taste with salt.
7. FILLING:
8. Soak dried porcini in 3 cups hot water; set aside. Combine lentils, 1 garlic clove, 1 tsp. salt, and 4 cups water in a medium saucepan. Bring to a boil; reduce heat and simmer, stirring occasionally, until lentils are tender but not mushy, 15–20 minutes. Drain lentils and discard garlic.
9. Heat 3 Tbsp. oil in a large heavy pot over medium heat. Add onions and cook, stirring occasionally, until soft, about 12 minutes. Add chopped garlic and cook for 1 minute. Stir in tomato paste. Cook, stirring constantly, until tomato paste is caramelized, 2–3 minutes.
10. Add bay leaves and wine; stir, scraping up any browned bits. Stir in porcini, slowly pouring porcini soaking liquid into pan but leaving any sediment behind. Bring to a simmer and cook until liquid is reduced by half, about 10 minutes. Stir in broth and cook, stirring occasionally, until reduced by half, about 45 minutes.
11. Strain mixture into a large saucepan and bring to a boil; discard solids in strainer. Stir cornstarch and 2 Tbsp. water in a small bowl to dissolve. Add cornstarch mixture; simmer until thickened, about 5 minutes. Whisk in miso. Season sauce with salt and pepper. Set aside.
12. Preheat oven to 450°. Toss vegetables and pearl onions with remaining 2 Tbsp. oil, 5 garlic cloves, and rosemary sprigs in a large bowl; season with salt and pepper. Divide between 2 rimmed baking sheets. Roast, stirring once, until tender, 20–25 minutes. Transfer garlic cloves to a small bowl; mash well with a fork and stir into sauce. Discard rosemary. DO AHEAD: Lentils, sauce, and vegetables can be made 1 day ahead. Cover separately; chill.
13. Arrange lentils in an even layer in a 3-qt. baking dish; set dish on a foil-lined rimmed baking sheet. Toss roasted vegetables with fresh mushrooms and chopped herbs; layer on top of lentils. Pour sauce over vegetables. Spoon potato mixture evenly over.
14. Bake until browned and bubbly, about 30 minutes. Let stand for 15 minutes before serving.