Baked Ratatouille with Sweet Pepper Sauce

This baked ratatouille takes zucchini, yellow squash, eggplant and Roma tomatoes, slices them into thin rounds and stands them in tight spiral rows over a sweet onion and red pepper sauce. It bakes covered, then uncovered, until the vegetables are tender and the edges pick up a little color. If your garden or farmers market has handed you more zucchini than you know what to do with, this is the dish that makes them look like they were planned.

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What goes into the dish

Everything here is everyday produce plus a can of crushed tomatoes. The recipe makes 6 servings in a 10 inch dish.

• 2 medium zucchini
• 2 yellow squash
• 1 small eggplant
• 4 Roma tomatoes
• 1 onion and 1 red bell pepper, finely diced
• 3 cloves garlic, minced
• 1 can (15 oz) crushed tomatoes
• 3 tbsp olive oil
• 1 tsp fresh thyme leaves
• Salt and pepper

Shop for width, then slice for thickness

The single most useful tip for baked ratatouille happens at the store or in the garden: pick vegetables that are about the same width. When the zucchini, squash, eggplant and tomatoes are close in diameter, the rounds stack into neat rows and every slice cooks at the same rate. A fat eggplant next to skinny zucchini gives you lopsided spirals, and the thicker pieces stay firm while the thin ones slump.

Once you have matching vegetables, slice them into thin rounds of the same thickness. A sharp knife works if you take your time. Uneven slices are the usual reason one part of the dish turns soft while another still has bite, so it is worth slowing down here. Thin, even rounds also pack tighter, which helps the rows stand up instead of tipping over in the oven.

Why the sauce gets a head start

The diced onion and red bell pepper cook in 1 tbsp of the oil for 8 minutes before anything else happens. That time softens them and brings out their sweetness, which is what turns a can of crushed tomatoes into a sauce with some depth. Raw onion buried under a layer of vegetables would never get the chance to cook down properly in the dish.

The garlic goes in after the onion and pepper, along with the crushed tomatoes, so it warms through without scorching. Season the sauce at this point, taste it, and adjust. It is the base for every bite, and it is much easier to fix now than after the vegetables are standing in it.

How to make baked ratatouille

• Heat the oven to 375°F.
• Cook the diced onion and red bell pepper in 1 tbsp of the olive oil for 8 minutes. Add the garlic and crushed tomatoes, season with salt and pepper, and spread the sauce in a 10 inch dish.
• Slice the zucchini, yellow squash, eggplant and Roma tomatoes into thin rounds of the same size.
• Stand the rounds on the sauce in alternating spiral rows.
• Drizzle with the remaining 2 tbsp olive oil, season with salt and pepper, and scatter the thyme over the top.
• Cover with parchment and bake 45 minutes, then uncover and bake 15 minutes more.

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Getting the spiral to hold its shape

The recipe asks for alternating rows but does not fix an order, so choose a repeating pattern of the four vegetables and keep to it all the way around. Changing colors from slice to slice is what makes the dish look so striking, and a steady pattern keeps the rows looking deliberate rather than random. Lean each slice against the one before it, overlapping so only a sliver of each round shows. Pack them snugly. Loose rows tend to fall flat once the vegetables soften.

The parchment matters too. For the first 45 minutes it traps steam so the vegetables cook through gently without drying out on top. The final 15 minutes uncovered let some of that moisture escape and give the edges of the slices a little color. If you skip the cover, the tops can dry and curl before the centers are tender.

Serving it at the table

Bring the dish to the table whole. The spiral is the reason to make this version, so let people see it before you cut in. Use a large spoon and dig all the way to the bottom so each portion gets a share of the sweet pepper sauce along with the layered vegetables.

The recipe makes 6 servings, so divide the dish into six roughly even portions as you scoop. Serving from the outer edge first keeps the rest of the spiral standing for anyone who comes back for seconds, and a final spoonful of sauce from the bottom of the dish over each plate keeps the slices moist.

Still working through a pile of zucchini? Try our crispy baked zucchini fries with garlic yogurt dip . For more oven dinners built around tomatoes, the baked feta tomato pasta is an easy pick, and the cranberry apple twice-baked sweet potatoes make another good side for a holiday table.

Questions about baked ratatouille

How long does baked ratatouille take from start to finish?

About 1 hour 15 minutes. Most of that is oven time: 45 minutes covered with parchment and 15 minutes uncovered at 375°F, with the sauce and slicing done before it goes in.

Can I use dried thyme?

The recipe calls for 1 tsp fresh thyme leaves. Fresh leaves scatter evenly over the rows and soften in the oven, so stick with fresh if you can find it.

Why did my ratatouille turn out watery?

Usually the slices were cut too thick or unevenly, or the dish skipped the final 15 minutes uncovered. That last stretch without the parchment is what lets extra liquid cook off.

What size dish should I use?

A 10 inch dish. It holds the sauce in an even layer and fits the vegetables from this recipe in tight spiral rows.

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Written and edited by The Foodie Yummy Kitchen Team

The Foodie Yummy Kitchen Team writes and edits the recipes on Foodie Yummy: classic American potluck salads, holiday sides and easy comfort food, with a few low-carb options. Every recipe lists exact quantities, numbered steps and a printable recipe card, plus notes on swaps, storage and make-ahead timing. Spot a problem with a recipe? Tell us through the contact page and we will correct it. About us