Citrus Soy Vegan Eggplant Burgers: Zesty Plant-Based Recipe

Citrus and soy make a great pair!

I used to dislike eggplant because most preparations turn it soft and mushy. After years of soggy eggplant dishes at events, I avoided it—until I developed these vegan citrus and soy eggplant burgers. Marinated in citrus and soy, roasted until firm and meaty, then served on a bun with wasabi mayo, these slices transform eggplant into a satisfyingly savory burger alternative.

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These burgers showcase seasonal citrus beautifully, but they work year-round. I used a mix of blood orange and grapefruit for a bright, slightly sweet-and-tart profile. Feel free to substitute whatever citrus you prefer; the key is a balance of sweet and tart juices to brighten the soy-based marinade.

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Serving suggestion: wasabi mayo. A simple blend of vegan mayo, wasabi powder, and rice wine vinegar adds a punchy, creamy layer that complements the citrus-soy roasted eggplant. Wasabi powder is commonly available and keeps well for adding a spicy kick to many dishes.

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This recipe avoids the usual mushiness. The salty, acidic marinade draws out excess moisture, and roasting at a high temperature firms the slices so they hold together like a substantial burger—almost Portobello-like in texture. Vegan citrus and soy eggplant burgers with wasabi mayo are a flavorful alternative to mundane eggplant Parmesan or typical veggie patties.

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Vegan Citrus and Soy Eggplant Burgers

Eggplant marinated in citrus juices and soy, roasted to perfection and served with wasabi mayo.
Course Main Course
Prep Time 3 hours
Cook Time 30 minutes
Total Time 3 hours 30 minutes
Author Lauren Hartmann

Ingredients

  • 1 Medium Eggplant
  • 1 tsp. Salt
  • 1 C. Mix of citrus juice (I used blood orange and grapefruit)
  • 1/2 C. Soy sauce
  • 3 Tbsp. Rice wine vinegar
  • 2 Tbsp. Brown sugar or coconut sugar
  • 2 Cloves Garlic, chopped
  • 1 tsp. Ginger, grated

Wasabi Mayo

  • 1/2 C. Vegan mayo
  • 1/2 tsp. Wasabi powder or wasabi
  • 1 tsp. Rice wine vinegar

For Serving

  • Vegan hamburger buns
  • Arugula
  • Pickled veggies

Instructions

  • Slice the eggplant into 1/4 to 1/2 inch thick rounds. Lay the slices on paper towels or a plate and sprinkle both sides with salt. Let them rest while you prepare the marinade.
  • In a large bowl or container, combine the citrus juices, soy sauce, rice wine vinegar, sugar, chopped garlic, and grated ginger. Whisk until the sugar dissolves and the mixture is well combined.
  • Add the eggplant slices to the marinade, pressing them down so they are submerged. Stir gently to ensure even coverage.
  • Marinate for at least 3 hours, preferably overnight, stirring occasionally so the slices absorb the flavors evenly.
  • Preheat the oven to 375°F (190°C). Lightly grease a baking sheet. Remove eggplant from the marinade and arrange the slices on the sheet in a single layer.
  • Roast for 10–15 minutes until edges brown and the slices begin to firm. Flip and roast another 10–15 minutes until golden brown and very firm.
  • While the eggplant roasts, whisk together vegan mayo, wasabi powder, and rice wine vinegar in a small bowl to make the wasabi mayo.
  • Assemble the burgers: spread wasabi mayo on the bun, add one or two eggplant slices, top with arugula and pickled vegetables, add more mayo if desired, and close the sandwich. Serve immediately.

Notes

Use any citrus combination you like; aim for one sweet and one tart juice for balance.

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