summer squash - Kitchen Treaty A food blog with easy & flexible vegetarian recipes Mon, 18 May 2026 15:20:11 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.5 Grilled Vegetable Sandwich https://www.kitchentreaty.com/grilled-summer-vegetable-sandwiches-with-pesto/?utm_source=rss&utm_medium=rss&utm_campaign=grilled-summer-vegetable-sandwiches-with-pesto https://www.kitchentreaty.com/grilled-summer-vegetable-sandwiches-with-pesto/#comments Tue, 07 Jul 2015 11:05:00 +0000 http://www.kitchentreaty.com/?p=14911 Marinated veggies are grilled then layered on pesto-slathered buns for the MOST amazing Grilled Vegetable Sandwich! We love these sandwiches in the summer months, but they’re honestly completely craveable year-round. The Story Behind the Recipe Summer arrived remarkably early in the Pacific Northwest, and I’ve been giddily embracing it. Summer is my homeboy. I’ve been […]

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Marinated veggies are grilled then layered on pesto-slathered buns for the MOST amazing Grilled Vegetable Sandwich! We love these sandwiches in the summer months, but they’re honestly completely craveable year-round.

Grilled Summer Vegetable Sandwiches with Pesto - Summer in a vegan sandwich! Zucchini, summer squash, and red bell pepper doused in balsamic-thyme marinade, grilled to perfection, and then piled onto pesto-smeared artisan rolls.

Table of Contents

The Story Behind the Recipe

Summer arrived remarkably early in the Pacific Northwest, and I’ve been giddily embracing it. Summer is my homeboy. I’ve been loving it so much, in fact, that I had a nightmare last night that suddenly it was mid-November and I looked around, confused – where had summer gone? I cried. Like, actually cried. Well, at least, in my dream I did. Probably into my pillow, too. Luckily, in my dream I remembered that it was still actually July, and I managed to return to summer. Sweet relief.

Good thing, because I’ve got veggies and herbs in the garden, on their way to becoming future summer dinners like this Grilled Vegetable Sandwich. I refuse to skip August, so take that, dream world!

Why You’ll Love These Sandwiches

These Grilled Vegetable Sandwiches take advantage of many of the foodstuffs that summer has to offer. Zucchini, yellow squash, sweet red bell peppers, and handfuls of fresh basil.

The pesto adds tons of flavor and the veggies, with their marinade, are tender and delicious.

Readers say …

“Excellent veggie sandwich! My husband and I loved this!”

– Lisa
Grilled Summer Vegetable Sandwiches with Pesto - Summer in a vegan sandwich! Zucchini, summer squash, and red bell pepper doused in balsamic-thyme marinade, grilled to perfection, and then piled onto pesto-smeared artisan rolls.

Ingredients

  • Zucchini & yellow squash – You can use all zucchini or all yellow squash, I just like the slightly different flavors and pretty colors.
  • Red bell pepper
  • Ciabatta sandwich rolls – Any favorite artisan sandwich roll will work, or one reader reported using focaccia which I think sounds absolutely amazing!
  • Olive oil – For toasting the rolls & for the veggie marinade
  • Pesto – For slathering on the rolls. Use your favorite store-bought brand or recipe, or try one of my favorite pesto recipes
  • Garlic, balsamic, thyme, Dijon mustard, lemon zest, salt & pepper – for the veggie marinade. YUM.

Adaptations/Variations

  • Keep it vegan by using vegan pesto. I’m pretty partial to this homemade vegan pesto recipe!
  • One Dish Two Ways for vegetarians and meat-eaters living together: Sandwiches are great for customizing to individual tastes and diets because of their handy-dandy individual serving size. My carnivorous guy tried these with a grilled chicken sausage sliced lengthwise and tucked inside but actually decided he preferred it without because it was so flavorful already. Perhaps some grilled sliced chicken breast would work nicely.
  • Make it cheesy by adding a melty slice of provolone, coins of fresh mozzarella, or a smear of herbed goat cheese. Grilled halloumi is amazing on these sandwiches, too!

How to Make Grilled Vegetable Sandwiches

To make them, you first give the veggies a quick soak in a balsamic-thyme marinade. While they marinate, if you’re using homemade pesto, go ahead and whip that up.

Grill the veggies either on your barbecue or indoors on your grill pan, then slather the insides of crusty toasted rolls with the fresh pesto.

Layer the veggies inside, and you’re good to go.

Grilled Summer Vegetable Sandwiches with Pesto - Summer in a vegan sandwich! Zucchini, summer squash, and red bell pepper doused in balsamic-thyme marinade, grilled to perfection, and then piled onto pesto-smeared artisan rolls.

Tips for Success

  • Toast your rolls. The crisp, golden insides hold up well to the pesto, and the added crunch and flavor is perfect!
  • Don’t flip your veggies too soon. Let them sit for awhile on the grill so that they form those glorious grill marks (this is where the flavor lies, too!)

More Grilling Recipes

More Vegetarian Sandwich Recipes

Print

Grilled Vegetable Sandwich

Summer in a sandwich! Zucchini, summer squash, and red bell peppers doused in balsamic-thyme marinade, grilled to perfection, and then piled onto pesto-smeared artisan rolls.
Keyword grilled vegetable sandwiches
Prep Time 40 minutes
Cook Time 10 minutes
Total Time 50 minutes
Servings 4 sandwiches
Calories 481kcal
Author Kare

Ingredients

  • 2-3 small to medium zucchini 1 pound
  • 2-3 small to medium summer squash or yellow squash 1 pound
  • 1 large red bell pepper
  • 4 ciabatta sandwich rolls or your favorite artisan sandwich roll
  • 2 tablespoons olive oil
  • 1/2 cup pesto

Marinade:

  • 1/4 cup olive oil
  • 2 medium cloves garlic minced
  • 2 tablespoons balsamic vinegar
  • 2 teaspoons fresh thyme leaves chopped
  • 1 teaspoon Dijon mustard
  • Zest from one lemon
  • 1/2 teaspoon kosher salt + more to taste
  • 1/8 teaspoon freshly ground black pepper + more to taste

Instructions

  • Slice the zucchini and summer squash lengthwise, 1/4- to 1/2-inch thick. Cut the bell pepper into 1-inch wide strips. Lay in a roomy baking dish.
  • Make the marinade. In a small bowl, whisk together all marinade ingredients. Taste and add additional salt and pepper if desired. Pour over the veggies and toss gently. Let sit for about 30 minutes.
  • Prepare your grill – medium direct heat, about 375 degrees. Lay the vegetables on the preheated grill grates and cook until grill lines form, about 5 minutes. Flip (we like to use long-handled tongs) and cook on the other side until tender and cooked through, about 5 more minutes. Transfer from the grill to a platter. Keep the grill on to quickly toast the rolls.
  • Slice the rolls in half and brush the insides with the 2 tablespoons olive oil. Lay the rolls cut-side down on the grill and cook just until warmed and a little golden and toasty. Remove from grill.
  • Assemble the sandwiches. Smear both sides of the roll with approx. 1 tablespoon of pesto on each side (more or less to taste). Add a layer of zucchini, summer squash, and two or three strips of the pepper. Close, cut in half, and serve!

Notes

Vegetarian options:

  • If you prefer Parmesan in your pesto, add 2 tablespoons to 1/4 cup shredded, to taste.
  • Add a slice of provolone to your sandwich or smear the roll with a little herbed goat cheese.

Meat options:

  • Add a layer of grilled chicken or a few slices of your favorite sausage.
6/10/2024 recipe update: Removed pesto recipe and instead called for your favorite pesto for simplification. If you’re still looking for the pesto recipe, here it is:
Basil Walnut Pesto
1/3 cup walnuts (toasted)
3 cups fresh basil (loosely packed)
2 medium cloves garlic (minced)
2 tablespoons fresh thyme leaves
1 tablespoon fresh lemon juice
1/2 teaspoon salt
2 tablespoons nutritional yeast flakes or Parm
1/3 cup olive oil
First, toast the walnuts (an optional but worthwhile step – toasting adds wonderful flavor). To toast, set a small pan over medium heat and add the walnuts. Stir frequently until golden and fragrant, about 5 minutes. Add to the pitcher of a blender or a food processor fitted with the s-blade. Add the basil, garlic, thyme, lemon juice, nutritional yeast or Parmesan if using, and salt. Turn on the blender or food processor, streaming in the olive oil as it runs, until a sauce forms. Taste pesto and add additional salt if desired.

Nutrition

Serving: 1sandwich | Calories: 481kcal | Carbohydrates: 39g | Protein: 9g | Fat: 33g | Saturated Fat: 5g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 15g | Cholesterol: 2mg | Sodium: 882mg | Potassium: 599mg | Fiber: 4g | Sugar: 8g | Vitamin A: 1997IU | Vitamin C: 74mg | Calcium: 93mg | Iron: 1mg

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White Chocolate Chip Summer Squash Bread https://www.kitchentreaty.com/white-chocolate-chip-summer-squash-bread/?utm_source=rss&utm_medium=rss&utm_campaign=white-chocolate-chip-summer-squash-bread https://www.kitchentreaty.com/white-chocolate-chip-summer-squash-bread/#comments Thu, 21 Aug 2014 11:00:48 +0000 http://www.kitchentreaty.com/?p=12404 Early on in my never-ending quest for finding delicious foodstuffs to make with the seemingly endless supply of yellow summer squash that parades through my kitchen time of year, I decided to make a quick bread – sort of a riff on zucchini bread, but filled to the gills with grated yellow squash instead of green. […]

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Early on in my never-ending quest for finding delicious foodstuffs to make with the seemingly endless supply of yellow summer squash that parades through my kitchen time of year, I decided to make a quick bread – sort of a riff on zucchini bread, but filled to the gills with grated yellow squash instead of green.

And it was good.

White Chocolate Chip Summer Squash Bread

So I decided to share the recipe with y’all. The end.

How’s that for a lazy intro?!

Okay, so about this delicious, moist, irresistible quick bread.

White Chocolate Chip Summer Squash Bread

It’s moist. Like, super moist. Naturally moist summer squash helps; the coconut oil seals the deal. Yep, this bread takes coconut oil instead of the vegetable or canola oil you’ll often find in quick bread recipes. If you’re not sure about coconut, don’t worry. You can’t detect the taste of coconut at all. Pinkie swear.

I thought this bread would be delicious with a bit of almond extract, but it felt wrong to leave out the vanilla. So I used both. Oh, and cinnamon, too. I couldn’t not!

White Chocolate Chip Summer Squash Bread
The white chocolate chips can be left out, but I like the bit of interesting melty sweetness they add here and there.

So that’s the scoop on White Chocolate Chip Summer Squash Bread. In a nutshell, it’s the best quick bread I’ve ever made. Seriously. And I think you’ll like it, too.

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Summer Squash Fritters with Basil & Lemony Sour Cream https://www.kitchentreaty.com/summer-squash-fritters-with-basil-lemony-sour-cream/?utm_source=rss&utm_medium=rss&utm_campaign=summer-squash-fritters-with-basil-lemony-sour-cream https://www.kitchentreaty.com/summer-squash-fritters-with-basil-lemony-sour-cream/#comments Mon, 04 Aug 2014 11:00:39 +0000 http://www.kitchentreaty.com/?p=12406 The post Summer Squash Fritters with Basil & Lemony Sour Cream appeared first on Kitchen Treaty.

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Slow Cooker Smoky White Bean & Summer Squash Soup with Optional Andouille Sausage https://www.kitchentreaty.com/slow-cooker-smoky-white-bean-summer-squash-soup-with-optional-andouille-sausage/?utm_source=rss&utm_medium=rss&utm_campaign=slow-cooker-smoky-white-bean-summer-squash-soup-with-optional-andouille-sausage https://www.kitchentreaty.com/slow-cooker-smoky-white-bean-summer-squash-soup-with-optional-andouille-sausage/#comments Mon, 17 Sep 2012 12:49:44 +0000 http://www.kitchentreaty.com/?p=1273 I’m in love with my Crock Pot. A little obsessed even. I talk about it often … which is what a girl with a crush tends to do, right? Seriously … Crock Pots are completely awesome though, am I right? Throw it in, walk away, come home to a completely cooked (and no doubt delicious) […]

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I’m in love with my Crock Pot. A little obsessed even. I talk about it often … which is what a girl with a crush tends to do, right? Seriously … Crock Pots are completely awesome though, am I right? Throw it in, walk away, come home to a completely cooked (and no doubt delicious) meal. If loving my Crock Pot is wrong … oh hell, I know it’s not wrong, so I’m not even going to finish that sentence.

This soup is one of the reasons our slow cooker has been out on the counter more often than not this past couple of months. Even though it’s been pretty warm weather-wise, I’ve still whipped up this soup a good half a dozen times every time even a wisp of clouds swoop in and the temperature dips below 70. Why? Partially because I was trying to perfect the recipe, but also because I couldn’t resist those vibrant yellow summer squash every time I stopped by my local farmstand, and I had to do something with them other than grill them. And also, it’s really, really good.

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