Ratatouille Lasagna

This is the ultimate fusion of French rustic charm and Italian comfort. This Ratatouille Lasagna takes the iconic spiral presentation of a French Tian and hides a rich, cheesy, multi-layered lasagna beneath the surface. It’s a perfect centerpiece for a cold winter night—warm, hearty, and visually stunning.

Ingredients

The "Ratatouille" Sauce:

• 28 oz Crushed tomatoes or high-quality marinara

• 1 medium Eggplant, finely diced

• 1 Large onion, diced

• 4 cloves Garlic, minced

• 1 tsp Dried thyme & 1 tsp Dried rosemary (the "winter" herbs)

• Pinch of Nutmeg (adds a cozy warmth)

• 2 tbsp Olive oil

The Layers:

• 1 box No-boil lasagna noodles (or traditional noodles, pre-cooked)

• 15 oz Whole milk ricotta cheese

• 1 Large egg

• 2 cups Shredded mozzarella

• 1/2 cup Grated Parmesan cheese

The Spiral Topping (from the image):

• • 1 Large zucchini, sliced into thin rounds

  • 1 Yellow squash, sliced into thin rounds

  • 1 Japanese eggplant (slender), sliced into thin rounds

  • 1 tbsp Olive oil & flaky salt

Directions

1. Simmer the Winter Sauce: 

Heat olive oil in your favorite All-Clad Sauté Pan. Sauté the onion and diced eggplant until soft and slightly browned (about 8 minutes). Stir in the garlic, thyme, rosemary, and nutmeg for 1 minute. Add the crushed tomatoes, reduce heat, and simmer for 20 minutes until the sauce is thick and "jammy."

2. Prepare the Ricotta

In your All-Clad mixing bowl, mix the ricotta, egg, and half of the parmesan. Season with salt and pepper. This egg ensures the layers stay together when you slice the lasagna.

3. Build the Foundation

In your D3 Stainless 3-ply Bonded Cookware, Stockpot with lid, 6 quart:

• Base: Spread 1/2 cup of the thick ratatouille sauce.

• Noodles: Add a layer of lasagna sheets.

• Cheese: Spread 1/3 of the ricotta mixture and a handful of mozzarella.

• Repeat: Continue layering sauce $\rightarrow$ noodles $\rightarrow$ cheese until you have 3 or 4 layers. Finish with a thin layer of sauce on the top noodles.

4. Create the Spiral

Starting from the outer edge of the pan, alternate slices of zucchini, squash, and eggplant, overlapping them slightly (just like in your photo). Work your way toward the center in a spiral.

5. The Bake

Preheat oven to 375°F (190°C). Brush the top of the vegetables with a little olive oil and sprinkle with salt.

• • Cover with foil and bake for 30 minutes.

  • Uncover, sprinkle with the remaining parmesan, and bake for another 15–20 minutes until the top vegetables are tender and slightly caramelized.

Pro Tip

The biggest enemy of a vegetable lasagna is water. Vegetables like zucchini and eggplant are roughly 90% water. If you put them in raw, they release all that liquid into your lasagna, making the noodles mushy and the sauce soupy.

To get that professional, tight-layered look, do this:

• Dry-Roast the "Noodles": Before assembling the layers, lay your zucchini and eggplant slices on a baking sheet. Dust them with a tiny bit of salt and pop them into a 400°F (200°C) oven for just 8-10 minutes.
• The "Paper Towel Press": Once those roasted slices come out, press them firmly between two paper towels. You’ll be shocked at how much water comes out.

Frequent Ask Questions

Can I make this ahead of time? A: Yes! You can assemble the whole dish (minus the spiral top) a day early. Add the fresh vegetable spiral right before you put it in the oven to keep them from getting soggy.

What if I don't have a mandoline for the slices? A: Use a very sharp chef's knife and take your time. The slices don't have to be paper-thin; 1/8 inch (about the thickness of a coin) is perfect for a winter bake.

Can I add meat? A: Definitely. You can brown half a pound of ground beef or Italian sausage with the onions and eggplant in Step 1 for a "Meaty Ratatouille" version.