Introduction

Gardener’s Pie with Root Vegetable Mash is a comforting, hearty dish that celebrates the natural sweetness of root vegetables and the earthiness of mushrooms and lentils. It’s a perfect vegetarian alternative to traditional shepherd’s pie, rich in flavor and texture.

Gardener’s Pie with Root Vegetable Mash Recipe - Recipe Image

Ingredients

1 ½ lb (680 g) potatoes
¾ lb (340 g) rutabaga, or other root vegetable such as celeriac or turnip
4 tbsp (56 g) butter, softened
1 tsp (6 g) kosher salt, plus extra
2 – 4 tbsp (30 to 60 ml) heavy cream
2 tbsp (30 ml) olive oil
1 onion, diced
3 stalks celery, diced
2 carrots, diced
½ lb (227 g) mushrooms, sliced
3 garlic cloves, minced
1 tbsp (15 ml) chopped fresh thyme, or 1 tsp dried
1 tbsp (15 ml) tomato paste
1 tbsp (15 ml) Worcestershire sauce
1 tsp (6 g) kosher salt, plus extra
½ tsp (3 g) pepper
1 tbsp (8 g) all-purpose flour
1 cup (250 ml) vegetable broth
1 can (540 ml) canned lentils, drained
¼ cup (60 ml) chopped fresh parsley
Extra chopped fresh parsley, for garnish

Instructions

Step 1: Peel and cube the potatoes and rutabaga. Place each in separate saucepans, cover with water, and season with a generous pinch of kosher salt. Bring to a boil and cook until fork tender; rutabaga will take 5 to 10 minutes longer than potatoes. Drain and keep warm.
Step 2: Mash the potatoes and rutabaga roughly until almost smooth using a potato masher. Combine the rutabaga with the potatoes, then add butter, kosher salt, and pepper. Mash until smooth. Add 2 tablespoons of heavy cream and mash together. Add remaining cream if needed for consistency. Keep warm.
Step 3: Preheat the oven to 425°F. Heat olive oil in a wide skillet or shallow braiser over medium heat. Add the diced onions, season with a pinch of kosher salt, and sauté for 2 to 3 minutes until softened.
Step 4: Add diced carrots and celery, reduce heat to low, and sauté for 5 to 7 minutes, stirring regularly until vegetables soften.
Step 5: Add mushrooms and cook for 4 to 5 minutes until tender. Stir in minced garlic and thyme, sauté for another minute until fragrant.
Step 6: Add tomato paste, Worcestershire sauce, kosher salt, and pepper. Cook briefly, then stir in flour until fully combined.
Step 7: Slowly add vegetable broth, bringing the mixture to a boil. Cook until thickened.
Step 8: Stir in drained lentils and cook for 2 to 3 minutes to blend flavors. Remove from heat and stir in chopped parsley.
Step 9: Transfer the filling to a shallow casserole dish or leave it in the braiser. Spoon the mashed root vegetable topping evenly over the filling.
Step 10: Bake for 15 to 20 minutes until the filling bubbles and the top is lightly browned. Garnish with extra chopped parsley before serving.

Tips & Variations

For a creamier mash, substitute heavy cream with sour cream or Greek yogurt.
Swap rutabaga for turnip or celeriac depending on what you have on hand or prefer.
Add a handful of grated cheese on top before baking for extra richness.
Use dried herbs if fresh ones are unavailable, but reduce quantities slightly.

Storage

Store leftover Gardener’s Pie in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven at 350°F until warmed through to keep the topping crisp. Avoid microwaving to maintain texture.

How to Serve

Serve this delicious recipe with your favorite sides.

FAQs

Can I make this pie vegan?

Yes. Replace butter with a plant-based alternative and use a non-dairy milk or cream substitute for the mash. Also, use a vegan Worcestershire sauce or skip it.

Can I prepare the filling ahead of time?

Absolutely. The filling can be made a day in advance and stored in the refrigerator. Assemble and bake just before serving for best results.

Gardener’s Pie with Root Vegetable Mash Recipe

Print Recipe

★★★★★

4.7 from 72 reviews

This Gardener’s Pie with Root Vegetable Mash is a comforting vegetarian dish featuring a hearty lentil and vegetable filling topped with a creamy mash of potatoes and root vegetables. Perfect for showcasing fresh produce, this pie offers a flavorful, nutritious meal that warms from the oven and delights with earthy, fragrant notes of thyme and garlic.

Author: zara
Prep Time: 25 minutes
Cook Time: 40 minutes
Total Time: 1 hour 5 minutes
Yield: 6 servings 1x
Category: Main Dish
Method: Baking
Cuisine: British
Diet: Vegetarian

Ingredients

Scale

Root Vegetable Mash

1 ½ lb (680 g) potatoes
¾ lb (340 g) rutabaga, or other root vegetable such as celeriac or turnip
4 tbsp (56 g) butter, softened
1 tsp (6 g) kosher salt, plus extra to taste
2 – 4 tbsp (30 to 60 ml) heavy cream

Pie Filling

2 tbsp (30 ml) olive oil
1 onion, diced
3 stalks celery, diced
2 carrots, diced
½ lb (227 g) mushrooms, sliced
3 garlic cloves, minced
1 tbsp (15 ml) chopped fresh thyme, or 1 tsp dried
1 tbsp (15 ml) tomato paste
1 tbsp (15 ml) Worcestershire sauce
1 tsp (6 g) kosher salt, plus extra to taste
½ tsp (3 g) pepper
1 tbsp (8 g) all-purpose flour
1 cup (250 ml) vegetable broth
1 can (540 ml) canned lentils, drained
¼ cup (60 ml) chopped fresh parsley
Extra chopped fresh parsley, for garnish

Instructions

Prepare Root Vegetables: Peel and cube the potatoes and rutabaga separately. Place each in a separate saucepan, cover with water, add a generous pinch of kosher salt, and bring to a boil. Cook until fork tender, with rutabaga taking about 5 to 10 minutes longer than potatoes. Drain and keep warm.
Mash Root Vegetables: Using a potato masher, roughly mash the rutabaga and potatoes separately until nearly smooth. Combine them in one bowl, then add softened butter, kosher salt, and pepper. Mash together until smooth. Stir in 2 tablespoons of heavy cream and mash to combine. Add more cream if the mash is dry. Keep warm.
Sauté Aromatics: Preheat the oven to 425°F (220°C). Heat a wide skillet or shallow braiser over medium heat. Add olive oil and diced onions, then season with kosher salt. Sauté for 2 to 3 minutes until the onions begin to soften.
Cook Vegetables: Add diced carrots and celery, reduce the heat to low, and sauté for 5 to 7 minutes, stirring regularly until vegetables soften. Add sliced mushrooms and cook for 4 to 5 minutes more until tender.
Add Flavorings: Stir in minced garlic and chopped fresh thyme. Sauté for 1 minute until fragrant. Add tomato paste, Worcestershire sauce, kosher salt, and pepper, then cook briefly to enhance flavors.
Thicken Filling: Sprinkle flour over the vegetables, stirring to combine fully. Slowly pour in vegetable broth while stirring. Bring mixture to a boil and cook until thickened into a sauce.
Incorporate Lentils and Herbs: Add the drained lentils and cook for 2 to 3 minutes to meld flavors. Stir in chopped fresh parsley.
Assemble Pie: Transfer the filling to a shallow casserole dish or leave in the braiser. Evenly spoon the mashed root vegetable topping over the filling.
Bake: Place the assembled dish in the preheated oven and bake for 15 to 20 minutes until the filling is bubbling and the top is lightly browned.
Garnish and Serve: Remove from oven, sprinkle with extra chopped parsley, and serve hot. Enjoy your comforting and wholesome Gardener’s Pie!

Notes

You can substitute rutabaga with other root vegetables like celeriac or turnip for a different flavor profile.
Adjust cream quantity in the mash to achieve your preferred consistency.
For a vegan version, replace butter with plant-based margarine and use a vegan Worcestershire sauce.
This pie is great for meal prepping and tastes even better the next day as flavors meld.
Use fresh herbs if possible for the best aromatic flavor.

Keywords: gardener’s pie, root vegetable mash, vegetarian pie, lentil pie, comfort food, vegetarian main dish, hearty pie, root vegetables