Vegetable Shepherds Pie

Name: Vegetable Shepherds Pie
Prep time: 15 min
Cook time: 27 min
Total time: 42 min
Yield: 4 servings
Cuisine: Irish
Ingredients: 3 Lbs Potatoes; 3 Lbs Small Potatoes; 1/2 cup Salted Butter; 1 oz Mushrooms; 3/4 cup Brown Lentils; 6 cloves Garlic; 1 tsp Kosher Salt; 3 cups Onion; 2 tbsp Tomato Puree; Bay Leaves; Olive Oil; 2 cups Dry White Wine; 8 cups Vegetable Stock; 2 tbsp Cornstarch; 2 tsp Soy Sauce; 2 sprigs Rosemary; Parsley; Sage; Chives

By The Spice & Simmer Kitchen · Published May 3, 2026

A one-pot Beef recipe with Irish flavors, built for busy weeknights when you want real food without a sink full of dishes. Comes together in roughly 83 minutes, serves about 4, and uses ingredients you can find at any normal grocery store. The technique is simple: build a base in your pot, layer in the main ingredients, simmer until everything has had time to talk to each other, and serve straight from the pan. If you're cooking for picky eaters, this one tends to land — the flavors are recognizable, the texture is comforting, and there's nothing weird hiding in the ingredient list. Perfect for the kind of evening where you want dinner on the table by 7pm and the kitchen empty by 7:30.

Ingredients

Makes 4 servings · 42 min total

3 Lbs Potatoes
3 Lbs Small Potatoes
1/2 cup Salted Butter
1 oz Mushrooms
3/4 cup Brown Lentils
6 cloves Garlic
1 tsp Kosher Salt
3 cups Onion
2 tbsp Tomato Puree
Bay Leaves
Olive Oil
2 cups Dry White Wine
8 cups Vegetable Stock
2 tbsp Cornstarch
2 tsp Soy Sauce
2 sprigs Rosemary
Parsley
Sage
Chives

Step-by-step instructions

Add Ingredients:.
cups chopped mixed vegetables 1 cup chopped fresh mushrooms 1 cup pearl onions.
TOPPING:.
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.
FILLING:.
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.
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.
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.
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.
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.
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.
Bake until browned and bubbly, about 30 minutes. Let stand for 15 minutes before serving.

Why this works on a weeknight

Vegetable Shepherds Pie lands at about 42 minutes total — a little longer than our 30-minute target, but most of that time is hands-off simmering, which is why it earned a spot in our Skillet & One-Pan collection. The technique is forgiving, the ingredient list is grocery-store standard, and the active cooking time is short enough that you can answer a text message in the middle without ruining dinner.

Cleanup notes

This is a single-pan recipe, so the cleanup is exactly one pan, one cutting board, and one knife. While the dish rests, fill the pan with hot soapy water — by the time you are done eating, the residue lifts off with a single pass of a sponge. Skip the steel wool on cast iron; a stiff brush and warm water are all you need to keep the seasoning intact.

Make-ahead and leftovers

Leftovers keep covered in the fridge for up to three days. Reheat in a dry pan over medium-low with a splash of water or stock to loosen the sauce. Vegetable Shepherds Pie actually improves overnight as the flavors keep talking to each other, so doubling the recipe and packing tomorrow's lunch is a high-leverage weeknight move.

Filed under 🥘 Skillet & One-Pan Beef Irish Baking