I think this is the best grilled vegetarian sandwich recipe, ever!
Actually, ‘sandwich’ doesn’t do it justice… it’s more like a sub, grinder, hoagie, or whatever they’re called in your neck of the woods. It uses plentiful garden and farmers market ingredients, and it couldn’t be easier.
My grilled vegetarian sandwich recipe is piled high with grilled zucchini, grilled red pepper and grilled red onion on a toasted baguette that’s been slathered with aioli and stuffed with feta… man, it’s a tough life being a vegetarian ;-)
Grilled Vegetarian Sandwich Ingredients
1 large red pepper (capsicum)
pepper
Make Your Aioli
Make your aioli by whisking together the mayonnaise, garlic, and lemon juice. I like to make mine a few hours ahead and stick it in the fridge so the flavors have a chance to mingle. I always use my homemade whole egg mayonnaise because it’s the best : -)
Prep & Grill Your Veggies
Slice the zucchini the long way about 1/4-inch thick, slice the red pepper into thick strips, and cut the red onion into thick slices. Toss them with a bit of olive oil, salt, pepper, and oregano.
Grill the veggies over hot coals, flipping them a time or two until they have a nice char and are starting to soften.
Assemble Your Sandwich
While the veggies are grilling, spread the baguette with aioli and sprinkle it with crumbled feta. Once the veggies are done, throw the baguette onto the grill and cover it for a few minutes. If you’re opposed to crispy bread, lay it on some foil instead of the naked grill grate.
Cook it until it’s warm and lovely, then pile it high with the grilled veggies and enjoy :)
In my grillhouse, the aioli, feta, red onions, red peppers, and baguette are not negotiable, but I’ve been known to improvise the rest… summer squash, aubergine, sliced portabello mushooms, etc.

P.S. If you stumbled upon my blog while searching for the best grilled vegetarian sandwich recipes, you might also be interested in my vegetarian pitas with grilled halloumi, grilled aubergine and halloumi sandwiches, and my grilled portabello burgers.
Stacie @ Divine Lifestyle says
That looks delicious. I’ve always been a big fan of grilled or charred veggies. It really brings out their sweetness and heightens the flavor. I’ll definitely be throwing some veggies on the grill this weekend.
Nancy says
Well, it definitely looks like the best grilled vegetarian sandwich ever. I love my sandwiches, and I love adding tons of veggies into them. Speaking of which, I haven’t made one of these in FOREVER. I’ve been just having them on bagels (not nearly as fun). Think I’ll switch it up today… I miss yummy fresh baguettes. Can you tell I’m a bread lover?
Sage says
I really miss decent bagels! There’s no such thing in Denmark, unless I make them myself. Enjoy : -)
Kita Bryant says
This looks great. I was thinking of what I could eat for my meatless Monday that I am trying to do and this may be it. I am a huge fan of feta cheese, it’s the best!
Sage says
I love feta! Hope you try it and love it : -)
goodiegodmother says
What is this leftover zucchini you speak of? haha The recipe looks delicious though, and I love veggie sandwiches! I think it’s worth buying zucchini. ;)
Sage says
I have to buy it, too. But my stateside gardening friends are complaining that their gardens are throwing zucchini at them faster than they can figure out how to use it. Make friends with a gardener ;-)
ashley says
I’m not much of a vegetable person unless they’re in something and this sandwich looks delicious! I love the veggies that you used and the addition of feta? YUM! Can’t wait to try this :)
Sage says
Feta makes most things awesome : -)
Nicci says
Being from Texas, I’d say you need some meat on that sandwich! But, if you’re a vegetarian, then it looks wonderful. I like the variety of veggies you used. Grilled peppers are so delicious!
Tammileetips says
Being a vegetarian it can be hard to find a good sandwich!! I love finding new ways to dress up vegetables to put on sandwiches. This would be perfect for me to make when John grills his food.
Sage says
Tell me about it! I love my sandwiches, but it’s so difficult to find new and exciting vegetarian sandwiches that don’t leave me hungry an hour after I’ve eaten.
Ourfamilyworld says
I love roasted vegetables, but I have never tried having them in a sandwich. It looks delicious and I’m sure the Feta cheese added more flavor to the grilled veggies. I need to try this.
Sage says
I make a winter version with roasted vegetables : -)
chbernard says
Oh wow this looks so good, especially the grilled zucchini! Adding feta cheese sounds amazing! I am going to make a grilled veggie sandwich soon!
Lisa @ Fun Money Mom says
Oh my gosh…this is my perfect sandwich! It looks so delicious and I’m pinning it so I can make it soon! Thanks so much for sharing your recipe at Share The Wealth Sunday!
xoxo
Lisa
Sage says
Thanks for the Pin love, Lisa : -)
Britni says
I will be honest I have never tried a grilled vegetable sandwich before, but those grilled vegetables look amazing. Then adding in a great bread and a yummy cheese makes this sandwich one I have to try.