Skip to main content
The Oasis Splash Pad is temporarily closed and will reopen at 10am on Saturday, July 19.

Today’s Hours: 7:00am – 1:30pm

Portobello Mushroom Burger Recipe

Looking for a flavorful, plant-based meal that doesn’t skimp out on that classic, grill-out feel? This Portobello Mushroom Burger blends bold flavor and wholesome ingredients together just in time for your next summer cook out.

Portobello mushrooms aren’t just a delicious meat alternative; they’re also naturally low in calories and packed with antioxidants, B vitamins, and fiber that support your immune system and gut health. The next time you’re craving a burger, try swapping your patty out for one of these. It’s a delicious and healthy way to eat for the planet! 🍔🌍

Serves: 1
Prep Time: 15 minutes (plus marination)
Cook Time: 10–12 minutes

 

Ingredients:

For the Burger:

  • 1 large portobello mushroom cap
  • 1 whole wheat bun
  • 2 slices vegan cheese (optional)
  • 2 slices fresh tomato
  • 1 oz. pickled onions
  • 2 oz. micro arugula
  • Balsamic glaze (to drizzle)

For the Portobello Marinade:

  • Olive oil
  • Soy sauce
  • Fresh rosemary
  • Minced garlic
  • Red pepper flakes
  • Steak seasoning

For the Vegetarian Honey Mustard:

  • Avocado or olive oil
  • Dijon mustard
  • Apple cider vinegar
  • Agave syrup
  • Minced garlic
  • Salt & pepper to taste

 

Instructions:

  1. Marinate the Mushroom
    Whisk together the marinade ingredients in a shallow dish or resealable bag. Add the mushroom cap and let it marinate for at least 30 minutes to fully absorb the flavoring.
  2. Grill It Up
    Heat a grill or skillet over medium heat. Grill the marinated mushroom, flipping occasionally, until tender with a charred edge — about 4–5 minutes per side. (Tip!: Now’s a good time to add your vegan cheese.)
  3. Toast the Bun
    Lightly toast your whole wheat bun until it’s crisp and warm.
  4. Build the Burger
  • Spread honey mustard generously on both bun halves.
  • On the bottom bun, layer tomato slices and pickled onions.
  • Add your grilled portobello and vegan cheese.
  • Pile on micro arugula and finish with a drizzle of balsamic glaze.
  • Top it off with the bun crown.
  1. Serve & Enjoy! Eating for the planet sure is tasty.

Share it

ticket icon

Ticket Prices

Tickets must be purchased in advance in order to maximize your time for fun!

Age and Prices

Adult

(General Admission, Ages 18+)

$39.95

Child

(General Admission, Ages 3 – 17)

$29.95

Military Discount

(Active & Retired)

$37.95