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Preheat your oven to 375°F. If using a baking dish, lightly grease a 9x13 inch baking dish or a 2-quart oven-safe casserole dish. If using an oven-safe skillet, ensure it's large enough for the ratatouille base and the topping.

Prepare the Ratatouille Base: Heat olive oil in a large skillet or Dutch oven over medium-high heat. Add the diced eggplant, zucchini, yellow squash, and red onion. Sauté for 8-10 minutes, stirring occasionally, until the vegetables begin to soften and lightly brown.

Add the minced garlic to the skillet and cook for 1 minute more until fragrant. Pour in the dry white wine, scraping up any browned bits from the bottom of the pan. Let it simmer for 2-3 minutes until the wine has mostly evaporated.

Stir in the crushed tomatoes, dried thyme, dried oregano, salt, and black pepper. Bring the mixture to a gentle simmer, then reduce the heat to medium-low, cover, and cook for 15-20 minutes, stirring occasionally, until the vegetables are tender and the sauce has thickened.

While the ratatouille simmers, prepare the Mashed Potato Topping: Place the peeled and quartered russet potatoes in a large pot and cover with cold water by about 1 inch. Add a generous pinch of salt. Bring to a boil over high heat, then reduce heat and simmer for 15-20 minutes, or until the potatoes are fork-tender.

Drain the cooked potatoes thoroughly. Return them to the hot, empty pot. Add the unsalted butter, heavy cream, salt, and black pepper. Mash the potatoes with a potato masher or ricer until smooth and creamy. Taste and adjust seasoning as needed.

Assemble the Pie: Pour the cooked ratatouille base into your prepared baking dish or leave it in the oven-safe skillet. Spread the mashed potato topping evenly over the ratatouille, ensuring it covers the entire surface. Use a fork to create decorative ridges on the potato topping.

Bake for 25-30 minutes, or until the mashed potato topping is golden brown and bubbly around the edges. If desired, sprinkle with fresh chopped basil before serving.

Let the Ratatouille Shepherd's Pie rest for 5-10 minutes before serving to allow it to set and cool slightly. Serve hot and enjoy this cozy, flavorful dish!


Preheat your oven to 375°F. If using a baking dish, lightly grease a 9x13 inch baking dish or a 2-quart oven-safe casserole dish. If using an oven-safe skillet, ensure it's large enough for the ratatouille base and the topping.

Prepare the Ratatouille Base: Heat olive oil in a large skillet or Dutch oven over medium-high heat. Add the diced eggplant, zucchini, yellow squash, and red onion. Sauté for 8-10 minutes, stirring occasionally, until the vegetables begin to soften and lightly brown.

Add the minced garlic to the skillet and cook for 1 minute more until fragrant. Pour in the dry white wine, scraping up any browned bits from the bottom of the pan. Let it simmer for 2-3 minutes until the wine has mostly evaporated.

Stir in the crushed tomatoes, dried thyme, dried oregano, salt, and black pepper. Bring the mixture to a gentle simmer, then reduce the heat to medium-low, cover, and cook for 15-20 minutes, stirring occasionally, until the vegetables are tender and the sauce has thickened.

While the ratatouille simmers, prepare the Mashed Potato Topping: Place the peeled and quartered russet potatoes in a large pot and cover with cold water by about 1 inch. Add a generous pinch of salt. Bring to a boil over high heat, then reduce heat and simmer for 15-20 minutes, or until the potatoes are fork-tender.

Drain the cooked potatoes thoroughly. Return them to the hot, empty pot. Add the unsalted butter, heavy cream, salt, and black pepper. Mash the potatoes with a potato masher or ricer until smooth and creamy. Taste and adjust seasoning as needed.

Assemble the Pie: Pour the cooked ratatouille base into your prepared baking dish or leave it in the oven-safe skillet. Spread the mashed potato topping evenly over the ratatouille, ensuring it covers the entire surface. Use a fork to create decorative ridges on the potato topping.

Bake for 25-30 minutes, or until the mashed potato topping is golden brown and bubbly around the edges. If desired, sprinkle with fresh chopped basil before serving.

Let the Ratatouille Shepherd's Pie rest for 5-10 minutes before serving to allow it to set and cool slightly. Serve hot and enjoy this cozy, flavorful dish!
