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Eggplant Gateau

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Eggplant gateau is one of those smart garden suppers that looks a little fancier than the work it asks of you. Thin slices of eggplant bake until tender, then get layered with a quick cherry tomato, garlic, basil, and Parmesan filling for a savory baked dish that slices neatly and goes straight to the table.

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This summer we were blessed to have an abundance of fresh vegetables in our quaint garden. My children, generally speaking, do not appreciate the flavor of eggplant in the same manner as dh and I. However, this particular recipe had them begging for seconds!

If you usually need a strategy for getting eggplant past skeptical eaters, this one helps. Roasting the slices first takes away that spongy raw texture, and the tomato-Parmesan layers do the heavy lifting.

eggplant-gateau

Ingredients for Eggplant Gateau

You only need a short list here, but each ingredient pulls its weight. Fresh basil keeps the tomato layer bright, and real Parmesan gives the finished gateau enough salty bite to keep the whole dish from tasting flat.

  • 2 medium eggplants, washed and thinly sliced
  • Olive oil, for drizzling and oiling the pan
  • 2 to 3 tablespoons unsalted butter
  • 1 1/2 pounds cherry tomatoes, halved
  • 1 large garlic clove, minced
  • Generous handful fresh basil leaves
  • Sea salt, to taste
  • Black pepper, to taste
  • 3 ounces fresh Parmesan, grated

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How to Make Eggplant Gateau

Pre-roasting the eggplant matters here. It softens the slices enough to layer neatly and keeps the finished dish from turning watery.

  1. Preheat the oven to 400°F.
  2. Lightly oil a large cookie sheet. Arrange the eggplant slices in a single layer, drizzle them with olive oil, and bake for 5 to 8 minutes, until softened and lightly browned.
  3. Meanwhile, melt the butter in a large saucepan over medium heat. Add the cherry tomatoes and minced garlic and cook until the tomatoes break down and turn soft and pulpy.
  4. Tear the basil leaves into small pieces and stir them into the tomato mixture. Season lightly with sea salt and black pepper.
  5. In a baking dish or ovenproof dish, layer the softened eggplant slices, then a layer of tomato-basil mixture, then a generous sprinkle of grated Parmesan. Repeat the layers.
  6. Finish with a top layer of eggplant and a final sprinkle of Parmesan.
  7. Bake for 10 minutes, until golden.
  8. Let the gateau stand for 5 minutes, then turn it out onto a warmed plate. Cut into wedges and serve.
Tomato and basil mixture simmering in a black skillet Baked eggplant slices layered with tomatoes and Parmesan

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Tips for the Best Eggplant Gateau

Slice the eggplant evenly so the layers cook at the same pace. If some slices are thick and some are paper-thin, you get a strange little mix of mush and chew, and nobody asked for that.

Cook the tomato mixture until it looks pulpy rather than soupy. A wetter filling can make the layers slide when you cut them.

Give the baked gateau its 5-minute rest before turning it out. That short pause helps the juices settle so the wedges hold together better.


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Easy Variations

Swap in grape tomatoes if that is what you have. They cook down much like cherry tomatoes and keep the sauce sweet and concentrated.

Use Pecorino Romano in place of Parmesan if you want a sharper, saltier finish. If you go that route, season the tomato layer lightly at first and adjust at the end.

Want a more complete supper on one plate? Serve it with Easy Parmesan Garlic Butterfly Rolls or add a vegetable side like Roasted Parmesan Cauliflower Steaks.


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Serving Suggestions

Serve Eggplant Gateau warm, cut into wedges, with crusty Italian bread just as written. It also works well beside a simple green salad when you want dinner to feel balanced without dirtying half the kitchen.

If you are feeding hungrier eaters, pair it with Crispy Garlic Herb Roasted Parmesan Taters. The crisp potatoes are a nice contrast to the soft layered vegetables.


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Storage and Make-Ahead

Refrigerate leftovers in a covered container within 2 hours of baking. For best quality and food safety, use them within 3 to 4 days. That matches general leftover guidance from the USDA Food Safety and Inspection Service.

To reheat, cover loosely and warm in a 350°F oven until heated through, or microwave individual portions in short bursts. The texture stays nicer in the oven, especially if you want the Parmesan on top to perk back up a bit.

You can make the tomato-basil filling a day ahead and refrigerate it separately. Roast and layer the eggplant the day you plan to serve it for the best texture.


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💸 Budget101® Price Breakdown: Eggplant Gateau

🛒 Walmart Grocery List

Not sure exactly what this batch costs you per serving? Here’s how to break down the real cost of any recipe so you know before you shop.

Frequently Asked Questions about Eggplant Gateau

Do I need to peel the eggplant for Eggplant Gateau?

No, you can leave the peel on. Thin-skinned eggplant softens nicely during the two bakes, and the peel helps each slice hold together so your layers do not collapse into vegetable confetti.

Can I salt the eggplant first to reduce bitterness?

You can, but you usually do not need to with modern globe eggplants. If yours looks especially large or seedy, salt the slices for about 20 to 30 minutes, blot them dry, then continue as written so you do not carry extra moisture into the dish.

What size baking dish works best for Eggplant Gateau?

An 8×8-inch or similar small casserole dish works well for a compact layered bake. You want the layers snug enough to stack, not spread so thin that you end up with something halfway between a casserole and a regret.

Can I use regular tomatoes instead of cherry tomatoes?

Yes, but remove some of the excess seeds and juice first. Cherry tomatoes cook down fast and stay sweet, while larger tomatoes can make the filling looser unless you simmer them a little longer.

Why is my Eggplant Gateau watery?

That usually happens when the eggplant is under-roasted or the tomato layer is too wet. Bake the slices until softened before layering, and cook the tomatoes until pulpy so the finished wedges hold their shape instead of sliding apart.

Can I make Eggplant Gateau ahead of time?

Yes. Make the tomato-basil filling up to 1 day ahead and refrigerate it, then roast, layer, and bake the dish when you are ready to serve. That gives you the convenience without asking the eggplant to sit around and go soggy.

Can I freeze Eggplant Gateau?

You can, though the texture softens after thawing. Cool it completely, wrap it well, and freeze for up to 2 to 3 months; then thaw in the refrigerator before reheating so it warms more evenly.

How many servings does Eggplant Gateau make?

Plan on about 6 servings as a side dish. If you serve it with bread and another vegetable or salad, that is usually enough for a family-style dinner without anyone eyeing the pan like it owes them money.

What can I serve with Eggplant Gateau?

Crusty Italian bread is the obvious choice because it catches the tomato juices beautifully. A green salad, roasted potatoes, or another simple vegetable side also works well if you want to round it out into a fuller meal.

Can I use dried basil instead of fresh basil?

You can if needed, but use less because dried herbs are more concentrated. Start with about 1 teaspoon dried basil in place of the fresh handful, then taste the tomato mixture before you add more.

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Golden baked Eggplant Gateau layered with cherry tomatoes, basil, garlic, and grated Parmesan

Did you make this recipe? Tell us how you served it or what you paired with it in the comments. That kind of kitchen intel helps everybody.

🖨️ Print-Friendly Eggplant Gateau

eggplant gateau

Eggplant Gateau

Article or recipe authorMelissa 'Liss' Burnell
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preparation time20 minutes
cook time18 minutes
total time38 minutes
This savory Eggplant Gateau layers roasted eggplant with a soft cherry tomato, garlic, basil, and Parmesan filling, then bakes until golden and sliceable. It makes an estimated 6 side-dish servings at about $7.59 total, or roughly $1.27 per serving, though prices vary by store and season.
Servings6 servings
CourseBeverage, Dinner, Main Course, Side Dish
CuisineItalian-inspired
Budget101 Price Breakdown$7.59

Ingredients

  • 2 medium eggplants washed and thinly sliced
  • Olive oil for drizzling and oiling the pan
  • 2 to 3 tablespoons unsalted butter
  • 1 ½ lbs cherry tomatoes halved
  • 1 large garlic clove minced
  • Generous handful basil leaves
  • Sea salt to taste
  • Black pepper to taste
  • 3 oz fresh Parmesan grated

Equipment

Large cookie sheet
Large saucepan

Instructions

  1. Preheat the oven to 400°F.
  2. Lightly oil a large cookie sheet. Arrange the eggplant slices in a single layer, drizzle with olive oil, and bake for 5 to 8 minutes until softened and slightly browned.
  3. Melt the butter in a large saucepan over medium heat. Add the cherry tomatoes and garlic and cook until soft and pulpy.
  4. Tear the basil leaves into small pieces and stir them into the tomato mixture. Season lightly with sea salt and black pepper.
  5. Layer the eggplant slices in a baking dish, add a layer of tomato-basil mixture, and sprinkle generously with Parmesan. Repeat the layers.
  6. Cover the final layer with eggplant and sprinkle with Parmesan.
  7. Bake for 10 minutes until golden.
  8. Let stand for 5 minutes, then turn out onto a warmed plate, cut into wedges, and serve with crusty Italian bread.

Recipe Size Alteration

💡 If you altered the ingredients above by doubling or tripling the recipe, you may also need to change the pan/dish size and adjust the cook time.

Notes

Estimated cost uses current online ingredient pricing and amount-used math, so your total may vary.
Prep time is estimated from washing, slicing, halving tomatoes, grating cheese, and layering.
Cook time reflects the 5 to 8 minute eggplant roast plus the 10 minute final bake and uses the upper roasting time for a conservative estimate.
For leftovers, refrigerate within 2 hours and use within 3 to 4 days.

Tried this recipe?

Let us know how it was!
Melissa 'Liss' Burnell, Founder of Budget101

👩‍🍳 About the Author

Melissa "Liss" Burnell started Budget101.com in 2001 because she needed it to exist — not because she saw a market opportunity. She was feeding a family of four on under $200 a month, and people kept asking how, so she started writing everything down.

That turned into 25 years of recipes, debt-busting strategies, and DIY content — including figuring out how to make 128 loads of laundry detergent for less than $2. Millions of families have quietly used this site to stretch a dollar without feeling like they're sacrificing anything. She's also the author of two bestselling budget cooking ebooks, available on Amazon.

📚 More on the About page, or find her on Pinterest, Instagram, and Facebook.

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