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sliced zucchini, tomatoes and yellow squash in round red baking dish

Zucchini Tomato Gratin | The Best Zucchini Recipe!


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  • Author: Colleen
  • Total Time: 40 minutes
  • Yield: 6-8 servings 1x

Description

This is the best zucchini recipe around! It combines fresh zucchini with ripe tomatoes, garlic, herbs and parmesan cheese to create a delicious savory, summer gratin. The simple preparation allows the delicate flavor of the zucchini to come through and the tomatoes and cheese give just the right amount of acid and saltiness to the dish. 


Ingredients

Scale

2 large ripe tomatoes

1 large zucchini (or 2 small)

1 large yellow squash (or 2 small)

1 shallot, thinly sliced

2 cloves garlic, thinly sliced

4 Tablespoons extra virgin olive oil

½ teaspoon salt

1 Tablespoon fresh thyme (or ½ teaspoon dried thyme)

1 teaspoon fresh rosemary leaves, chopped (or ¼ teaspoon dried rosemary)

Freshly ground black pepper

½ cup freshly grated parmesan cheese


Instructions

  1. Preheat oven to 400°F.
  2. Slice- Slice the zucchini and summer squash into ¼-½” slices. 
  3. Before you slice the tomatoes, squeeze the seeds and pulp out of the tomatoes; too much will make the dish overly juicy. Slice them into ¼-½” slices. Aim for all the vegetables to be approximately the same size, so you may need to cut the tomatoes in half if they are very large. I like to cut the zucchini on the diagonal to make larger slices.
  4. Slice the shallot and garlic cloves thinly.
  5. Place all the vegetables in a large bowl, drizzle with the olive oil, salt, pepper and herbs and stir to coat.
  6. Pour a teaspoon of olive oil in the bottom of a 9” round baking dish or a 9”x13” baking dish. Arrange the vegetables as you’d like in the baking dish.
  7. Sprinkle the vegetables with grated parmesan cheese.
  8. Bake for 30-40 minutes or until browned.
  9. Serve with additional freshly grated parmesan cheese if desired.

Notes

  • Don’t stress about arranging the vegetables too tidily or making sure each slice is perfect. This is meant to be a rustic dish, and the beauty comes from the mix of vibrant colors, however they are arranged.
  • This recipe calls for extra virgin olive oil, but you can use canola oil, or another vegetable oil if you like.

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  • Prep Time: 10 minutes
  • Cook Time: 30 minutes