Start your BBQ’s, because the best Grillable Veggie Burgers with Diner Sauce is here! Loads of flavour and texture makes these hearty burgers a knock-out for both vegans and meat eaters!

At the core, these burgers are full of wholesome ingredients (something we can’t say about some packaged plant based patties!). They are made out of earthy mushrooms, onions, garlic, black beans, panko, oats (yup!), and seasoning. I love making plant forward dishes but not at the expense of flavour! These burgers did not disappoint, and topped with the yummy diner sauce, vegan cheese, and all the toppings (I’m a pickle, tomato, lettuce, onion type of gal), this was a delicious meal.

How To Make a Vegan Burger

I guess nothing is truly off limits in a veggie burger… but for these veggie burgers I stuck to simple ingredients that paired well together. Most importantly, I needed to carefully choose ingredients to ensure they bound together properly. For these Grillable Veggie Burgers I used :

  • onion
  • mushrooms
  • walnuts (gives great texture!)
  • black beans
  • panko
  • flake oats
  • seasonings

My big tip for you all, is to use an ice cream scoop to keep patties consistent. I used my size 8 scooper, and it worked perfectly! You could, of course, cook these in a pan, but grilling gave such great char and smoky goodness similar to a meat burger. I mean look at those grill marks!!

The Best Burger Sauce Ever

Not to brag, but we nailed the sauce here. This Diner Burger Sauce is your one-stop-condiment-shop. It combines ketchup, mayo, mustard, relish and dill pickles to create – magic. If for some reason this wasn’t up your alley, this would also taste amazing with Homemade BBQ Sauce!

Healthy Sides For Burgers

Needing side dish ideas for your burgers?! Here are some of my favourites!

  • Crispy Oven Fries (because burgers and fries are a classic combo)
  • Broccoli Salad
  • Roasted Tomato Soup
  • Veggie Platter with Homemade Dip
  • Baked Zucchini Fries
  • Dill Potato Salad

Grillable Veggie Burgers with Diner Sauce

Start your BBQ’s, because the best Grillable Veggie Burger with Diner Sauce is here! Loads of flavour and texture makes these hearty burgers a knock-out for both vegans and meat eaters!

 Course Dinner
 Keyword BBQ, Burger, vegan, Vegetarian
 Prep Time 10 minutes
 Cook Time 10 minutes
 Chill Time 30 minutes
 Servings 10 -12 patties
 Author Fraîche


For the Burgers

  • 2 tablespoons olive oil
  • 1 small yellow onion diced
  • 4 cloves garlic minced
  • 1 lb white or brown mushrooms
  • 2 cups walnuts
  • 1 -540 ml can black beans drained & rinsed
  • ½ cup roughly chopped fresh cilantro
  • 2 tablespoons nutritional yeast
  • 2 tablespoons soy sauce
  • 1 tablespoon cumin
  • 1 tablespoon chili powder
  • 1/2 teaspoon pepper
  • 1 cup large flake oats
  • 1 ½ cups panko or bread crumbs
  • Burger Buns
  • Desired burger toppings

For the Diner Burger Sauce (Yields 1/2 cup)

  • 1/4 cup ketchup
  • 1/4 cup mayo
  • 2 tablespoons relish
  • 2 tablespoons yellow mustard
  • 2 tablespoons diced dill pickles
  • 1/2 teaspoon salt


    1. In a small frying pan, heat the olive oil on medium heat and add the onion. Cook, stirring, for 3-4 minutes or until the onions start to soften and turn golden. Add in the garlic. Cook for an additional 1-2 minutes or until the garlic becomes fragrant. Remove from the heat.

    2. In a food processor, pulse the mushrooms until they are small pieces but not a paste. Transfer to a large bowl and set aside.

  1. In the food processor again, pulse the walnuts until they are coarse crumbs. Add in the black beans, cilantro, nutritional yeast, soy sauce, cumin, chilli powder and pepper. Add the walnut mixture to the mushrooms along with the oats, panko or bread crumbs and cooked onions. Stir together to combine, cover and refrigerate for at least 30 minutes.

  2. Shape into patties (we used a size 8 scoop which was perfect!) and cook in a frying pan with a bit of oil until crisp on each side, about 2-3 minutes a side or grill on the barbecue (brush the grill with a bit of oil first). Serve with your favourite burger toppings and enjoy!