Summer Squash Gratin

I had to make this lovely summer gratin as soon as I saw a photo of it. So pretty and colorful! 🙂 It is a wonderful celebration of the bounty of summer squash.

We ate it as a vegetarian main dish with a crusty sourdough baguette. It would also be a fabulous side dish. This recipe was adapted from Food and Wine, contributed by Laura Rege. I used sweet cipollini onions from my CSA box in addition to the leeks.

After adding an additional sautéed CSA cipollini onion, I also made a mini-gratin with my leftover filling. 🙂 Great.

Yield: Serves 4 to 6 as a main dish (plus an additional mini-gratin, above, optional)
  • 5 T extra-virgin olive oil, divided
  • 2 small leeks, white and tender green parts thinly sliced into rounds
  • 2 cipollini onions, halved and cut into slices (plus 1 additional onion if making a mini-gratin)
  • 1/4 cup dry white wine (plus 1 additional T if making a mini-gratin)
  • 3 medium zucchini, cut lengthwise into 1/8-inch-thick slices, preferably 
on a mandoline
  • 3 medium yellow summer squash, cut lengthwise into 1/8-inch-thick slices, preferably on a mandoline
  • coarse salt
  • freshly ground black pepper
  • 1 cup finely shredded Gruyère (about 2 ounces)
  • 1 plum tomato, very thinly sliced crosswise
  • flaky sea salt, for finishing
  • crusty bread such as a sourdough baguette, for serving

  1. Preheat the oven to 425°, preferably on convection.
  2. In a large skillet, heat 1 tablespoon of oil over moderately high heat. Add the leeks, and onions, if using, and cook, stirring occasionally, until softened, about 3 minutes.
  3. Add the wine and cook until evaporated, about 2 minutes.
  4. Spread in a 9-inch round baking dish.
  5. Using a mandolin, slice the squash lengthwise into 1/8-inch slices.
  6. Meanwhile, on 4 large baking sheets, spread the zucchini 
and yellow squash and brush with the remaining 4 tablespoons of oil; season with salt and pepper.
  7. Sprinkle with the cheese and let sit until slightly softened, about 5 minutes or up to 1 hour.
  8. Tightly roll 1 piece of zucchini and set it on the leeks in the center of the dish.
  9. Working 
outward from that center slice, continue rolling and coiling additional pieces of zucchini and yellow squash until you reach the edge of the baking dish.
  10. Season the tomato slices with salt and pepper, then tuck in intervals between the zucchini and squash.
  11. Scrape any cheese off of the baking sheets and sprinkle on top.
  12. Place on a parchment paper-lined baking sheet, and bake for 30 to 35 minutes, 
until the zucchini and squash are tender and browned 
in spots. (I cooked mine for 33 minutes, and 27 minutes for the mini)
  13. Remove from oven. While hot, sprinkle with sea salt.
  14. Let cool slightly, then 
serve with crusty bread.

I’m sharing my summer gratin at Angie’s Fiesta Friday #180, co-hosted by Tracey @My Baja Kitchen and Jhuls @The Not So Creative Cook. Enjoy!

Note: If making the additional mini-gratin, saute the additional onion, adding 1 T wine cooking as directed above. Place in the bottom of a mini-pie dish and layer remaining squash and cheese. Cook as directed.

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Mexican Street Corn Crostini

I was also able to celebrate my birthday on my special Charleston trip. 🙂 Although I enjoyed a lot of wonderful Southern food while I was there, my friends and I also went to Sean Brock’s Minero’s Restaurant for a Mexican birthday lunch. It was SO good.

Along with our various tacos, we had bowls of Mexican street corn which were absolutely delicious. I do plan on re-creating that dish, but for now these grilled corn crostini were another terrific variation. I made these as a Fourth of July appetizer. Unlike other crostini that have to be prepared at the last-minute, these are perfect to bring to a party or potluck because the topping can be placed on the ciabatta in advance.

This recipe was adapted from Bon Appetit. I toasted the ciabatta until it was nicely browned and increased the garlic on the toasted bread. Great!

Yield: Makes 12 crostini

  • 2 ears corn, shucked
  • 1 T vegetable oil
  • coarse salt and freshly ground black pepper
  • 12 slices of ciabatta bread (I used most of a 1 lb. loaf, cut into 12 1/2-inch thick slices)
  • 2 garlic cloves, cut in half
  • 1/4 cup crema mexicana or sour cream
  • 3 T crumbled feta
  • lime wedge
  • cilantro leaves
  • chili powder
  1. Rub corn with vegetable oil. Season corn with salt and freshly ground black pepper; grill until slightly charred and tender.
  2. Slice corn off the cob in wide strips. (I grilled 3 ears just to ensure that I would have enough wide strips.)
  3. Grill or toast the bread slices until uniformly browned. While still warm, rub the top of each slice with garlic.
  4. Mix crema mexicana or sour cream with feta.
  5. Smear toasts with crema mixture. Top crema with grilled corn.
  6. Squeeze a lime wedge over each.
  7. Garnish with cilantro leaves and sprinkle with chili powder.

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