Ina Garten Tomato Gratin

I made this on a whim, thinking it would be just a side dish. But somewhere between the golden breadcrumbs and the bubbling, herby tomatoes, it took over the table.

The first time, I didn’t toast the breadcrumbs separately—they went in soft, and came out soggy. Not again. Now I crisp them first, layer everything with intention, and serve it right out of the oven.

It’s one of those dishes that turns humble ingredients into something unexpectedly elegant.

What Most Get Wrong

Tomato gratin seems simple—and it is—but only if you treat each layer with respect. The bread needs to be dry, the cheese sharp, and the tomatoes well-salted to release moisture. When you get that balance right, the result is both fresh and rich.

Ingredients That Pulled Weight

• Whole-grain bread – Adds body and texture. I once tried soft sandwich bread—too fluffy, no crunch.
• Garlic + olive oil – Classic base. The oil helps crisp the breadcrumbs and infuses them with flavor.
• Pecorino Romano – Sharp, salty, and made the whole dish sing. Parmesan works too, but I find Pecorino has more personality here.
• Fresh tomatoes – Ripe, firm, and sliced just thick enough to hold their shape. I tried cherry tomatoes once—too watery.
• Basil – Adds brightness. Don’t swap dried here; fresh matters.
• Salt and pepper – Go light on the salt if your cheese is salty. And fresh-ground pepper makes a difference in a dish this simple.

Swaps That Actually Worked

• Sourdough instead of whole grain – Gave the topping more structure and a touch of tang.
• Fontina in place of Pecorino – Made it gooier, which was lovely, but lost some sharpness.
• Thyme with the basil – A few leaves added an earthier note, perfect in fall.

What I’d Do Differently

What Went Wrong	Why It Happens	How to Fix It
Mushy topping	Added breadcrumbs before baking tomatoes	Bake them separately and layer last
Watery base	Tomatoes too juicy, unseasoned	Salt tomato slices, let them sit 10 minutes
Bland result	Used pre-shredded cheese	Always grate fresh—it melts and tastes better

How to Make Ina Garten’s Tomato Gratin

1. Prep the oven: 450°F. Lightly grease a 2-quart baking dish with olive oil spray.
2. Make the breadcrumb topping:
   • In a food processor, pulse bread into coarse crumbs.
   • Add garlic, olive oil, and cheese. Pulse just to combine.
   • Spread on a baking sheet and toast in oven for 5 minutes, until golden.
3. Layer the tomatoes:
   • Slice tomatoes ~½ inch thick.
   • Layer in baking dish with basil, salt, and pepper between each layer.
   • Bake uncovered for 10 minutes to soften and release juices.
4. Assemble:
   • Remove dish from oven. Spoon toasted breadcrumbs evenly on top.
5. Final bake:
   • Return to oven and bake another 10 minutes, until golden and bubbling.
6. Serve:
   • Let sit 5–10 minutes before serving warm.

Tips I Always Use

• I toast the bread lightly before processing. It gives better texture and doesn’t gum up the food processor.
• If the tomatoes are very ripe, I layer a paper towel underneath them briefly to wick excess moisture before baking.
• Use a shallow, wide baking dish for more surface area—every bite should have some crunch.

How I Store It

• Fridge: Store in an airtight container up to 3 days. It reheats well, though the topping softens.
• Freezer: Freeze fully baked portions wrapped in foil. Reheat at 350°F until crisp.
• Reheat tip: Re-crisp the top under the broiler for 1–2 minutes at the end.

Before You Make It…

Q: Can I prep this ahead?
A: You can make the tomato layers and breadcrumb topping separately ahead, then assemble and bake just before serving.

Q: Can I use cherry or grape tomatoes?
A: You can, but they’re juicier and less structured—slice them in half and salt them first to reduce water.

Q: How do I keep the topping from burning?
A: Bake it in the center of the oven and keep an eye on the final 10 minutes.

Q: Is this a side or a main?
A: Both. It pairs beautifully with grilled meats but also holds up as a light vegetarian main with a green salad.

Try More Recipes:

• Ina Garten Shepherd’s Pie
• Ina Garten Cassoulet Recipe
• Barefoot Contessa Chicken Scarpariello