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Jun 10 2023

Ultimate Grilled Squash, Eggplant & Tomato Sandwich

Find the recipe card at the end of the post. Make sure to read the content as it contains chef tips, substitution options, and answers to FAQs to help you succeed the first time around!

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Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.
Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.
Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.

Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.

Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.

Veggies For Days

I received a shipment of summer veggies from one of my clients to play with on the grill. I mean it is the grilling season after all. And while most folks think of steaks, burgers, or brisket when it comes to grilling, there’s something to be said about grilled veggies.

In this box was a vast assortment of things like fennel, baby artichokes, anaheim peppers along with baby squash, baby eggplant, and chayote.

Grab Your Ingredients

Y’all when I tell you that I am crushing HARD on this sandwich (and it’s all veggies), you know it has to be amazing!

  • Baby zucchini
  • Baby eggplant
  • Chayote
  • Heirloom Tomatoes
  • Fresh Mozzarella
  • Hoagie Roll slathered in garlic butter
  • Italian Herb Oil

Let’s Get Started

  1. Preheat the grill to 400F for direct heat. Not sure what direct or indirect heat means? Check out this article!
  2. Whisk together the ingredients for the Italian Herb Oil, and set aside. Slice the zucchini, eggplant, and chayote into 1/4″ thick slices.
  3. Pour a few tablespoons of the oil on top of the veggies and gently toss to coat all of the veggies.
  4. Place the veggies onto the hot girl grate in a single layer.
Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.

Grill To Soften Slightly

Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.

Grill for about 5-7 minutes and carefully flip.

You do not want these mushy but rather still slightly firm-ish.

Since the chayote are a more firm squash you can cook them a minute or two longer. I personally like the juxtaposition of textures between the semi-soft squash and the slightly crispy chayote

Remove to a plate.

Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.

Grill the Tomatoes & Bread

I personally like using heirloom tomatoes in this recipe as they are firmer than traditional tomatoes and can stand up to time on the grill.

  1. Cut the tomatoes into 1/3-1/2″ thick rounds and drizzle with some herbed oil.
  2. Place the tomatoes and garlic butter rolls onto the grill. I like to do uncut side-down first when it comes to the bread. Grill for about 2-3 minutes and flip.
Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.

Cheese Please

For this part you can go with pretty much any soft cheese. If you are going to use burrata though, I would not add this to the grill but put it directly on the hot bread and veggies on a plate.

  1. Once you flip the tomatoes, add a few slices of fresh mozzarella. Flip the bread and grill for 1-2 more minutes or until golden brown.
  2. For the tomatoes, grill for a couple of more. Gently remove from the grill.

Assemble The Best Grilled Sandwich Ever!

  1. Add a few slices of fresh mozzarella to the bottom of the bun. Follow that with 2 slices of cheesy grilled heirloom tomatoes.
  2. Top with a few slices of grilled zucchini, eggplant, and chayote squash.
  3. Drizzle a bit of the Italian herbed oil over the veggies, place the bun on top, and slice!
Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.

ENJOY!

I’ve said this a million times…growing up I ate exactly 3 veggies and none of the veggies on this sandwich was one of them. This sandwich… OMG, seriously it was INCREDIBLE! Like all it took was one bite to fall head over heels in love with a sandwich. An all-veggie sandwich too!

And the funny part, even before trying this sandwich I was not an eggplant fan. But grilled like this with the herbed oil and the other veggies, it was pure magic!

This sandwich was so ‘meaty’. And no, as a hardcore carnivore lover, you do NOT miss the meat at all. I loved this so much that I ate this every single day for 5 days in a row!

Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.
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Ultimate Grilled Squash, Eggplant & Tomato Sandwich

Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.
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5 from 13 reviews

Perfectly grilled zucchini, chayote, and eggplant on a garlic butter grilled bun topped with grilled cheesy heirloom tomatoes and Italian herb oil.

  • Author: TKWAdmin
  • Prep Time: 10
  • Cook Time: 10
  • Total Time: 20 minutes
  • Category: grill, hoagies, meatless monday, sandwiches, vegetarian
  • Method: grill
  • Cuisine: grill, hoagies, meatless monday, sandwiches, vegetarian

Ingredients

  • 1 baby zucchini sliced in 1/4” strips
  • 1 baby eggplant sliced into 1/4” strips
  • 1 chayote squash sliced into 1/4” strips
  • 1 heirloom tomato sliced in 1/3-1/2” rounds (4 pieces)
  • 1/4 cup olive oil
  • 2 tsp Italian seasoning
  • 8 slices fresh mozzarella
  • 2 Hoagie buns sliced and coated with garlic butter

Instructions

  1. Preheat the Big Green Egg MiniMax grill (or your grill of choice) to 400°. Whisk together the olive oil and Italian seasoning.
  2. Place the sliced zucchini, eggplant, and chayote in a bowl. Drizzle with 1-2 Tbl herbed oil. Gently toss to coat.
  3. Place the veggies on the grill grate in a single layer; grilling for 3-7 minutes per side. You want them tender but not mushy. *Chayote will retain a crispness so if you want grill longer.
  4. Drizzle the tomatoes with some herbed oil and grill for 5 minutes. While grilling, add the hoagie roll, and uncut side down. Flip the tomatoes and place fresh mozzarella on top grilling for 1-2 minutes.
  5. Transfer the hoagie’s bottom part to the plate, and add more mozzarella followed by the tomatoes, grilled zucchini, eggplant, and chayote. Drizzle 1 Tbl of herbed oil over the top. Add the top, slice, and enjoy!

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30 responses

  1. Jamie
    June 18, 2023

    Wow! This zucchini looks amazingly delicious! It was grilled to perfection! Everything looks great and mouth-watering! Loved it!

    Reply
    1. TKWAdmin
      June 19, 2023

      Thank you Jamie! This definitely is on repeat for us!

      Best Kitchen Wishes!

      Reply
  2. Ann
    June 18, 2023

    This sandwich really screamed summer for me! Tasted so fresh, a great summer sandwich! Thanks for the recipe share!

    Reply
    1. TKWAdmin
      June 19, 2023

      Awe, thank you so much Ann!

      Best Kitchen Wishes!

      Reply
  3. Amy
    June 18, 2023

    What an unbelievable sandwich! I just love big bold sandwiches and this veggie loaded one hit the spot. I really loved the eggplant and squash!

    Reply
    1. TKWAdmin
      June 18, 2023

      Thank you so much, Amy!

      Best Kitchen Wishes!

      Reply
  4. Veronika
    June 18, 2023

    I love a good veggie sandwich and this one exceeded my expectations! The grilled vegetables were so good!

    Reply
    1. TKWAdmin
      June 18, 2023

      Thank you so much!

      Best Kitchen Wishes!

      Reply
  5. Loreto and Nicoletta
    June 18, 2023

    Being Italuan we are no strangers to grilled vegetables. Your sandwich looks packed with delicious charred, sweet, and savory flavors. I love that you grilled the tomato, then added the mozzarella on it to melt. This is definately a gourmet sandwich! Well done! ❤️

    Reply
    1. TKWAdmin
      June 18, 2023

      Thank you! Yes, grilling the tomatoes definitely elevated this sandwich!

      Best Kitchen Wishes!

      Reply
  6. Sean
    June 16, 2023

    I made these for my vegan friends by swapping the cheese with hummus and they were wonderful. I will be making these again.

    Reply
    1. TKWAdmin
      June 17, 2023

      Oh I love the swap of hummus! So happy everyone loved these!

      Best Kitchen Wishes!

      Reply
  7. veenaazmanov
    June 15, 2023

    Grilled veggies is definitely a healthy combination to making this delicious sandwich. Perfect for any meal time or tea time party.

    Reply
    1. TKWAdmin
      June 15, 2023

      Agreed; thank you!

      Reply
  8. Marta
    June 13, 2023

    We have an abundance of squash and eggplant in our garden, so I put them to use using your recipe. I don’t know that we’ve ever eaten such a delicious sandwich with produce we grew. Thanks so much!

    Reply
    1. TKWAdmin
      June 14, 2023

      That’s so awesome; thank you! This sandwich is definitely on repeat for me!

      Best Kitchen Wishes!

      Reply
  9. Lauren Michael Harris
    June 13, 2023

    Vegetarian sandwiches are my favorite. What a great idea to grill some veggies to make the ultimate summer sandwich!

    Reply
    1. TKWAdmin
      June 13, 2023

      This sandwich rocked my world!

      Best Kitchen Wishes!

      Reply
  10. Bernice
    June 12, 2023

    Wow, that’s a handful of veggies right there! I’m always looking to add more vegetables to my family’s diet and I already know they love a good sandwich. I call this recipe a win-win!

    Reply
    1. TKWAdmin
      June 13, 2023

      This sandwich was EVERYTHING!

      Best Kitchen Wishes!

      Reply
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