Ultimate Meatless Burger

Mushrooms give these grilled veggie burgers a meaty texture and rich umami flavor. Topped with a zesty sauce and sharp Cheddar cheese, these are the perfect summer burger to feed any crowd.

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Ultimate Meatless Burger

Cooking time
PREP TIME 20 mins
Cooking time
COOK TIME 25 mins
Ready in
TOTAL TIME 45 mins


  • 1 bag Success® Brown Rice
  • 3 tbsp butter, softened
  • 1 onion, diced
  • 1/2 lb mushrooms, sliced
  • 3 cloves garlic, minced
  • 1/2 cup breadcrumbs
  • 1 egg
  • 1 cup canned brown lentils, drained and rinsed
  • 2 tbsp tomato paste
  • 2 tsp ground cumin
  • 1 tsp balsamic vinegar
  • 1 tsp tamari
  • 1 tsp chili powder
  • 1 tsp smoked paprika
  • 1 1/2 tsp salt
  • 1/2 tsp black pepper
  • 1/2 cup mayonnaise
  • 2 tbsp barbecue sauce
  • 1 tbsp Dijon mustard
  • 1 tbsp pickles, chopped
  • 4 slices sharp Cheddar cheese
  • 4 brioche burger buns, split
  • 1 cup arugula
  • 4 slices tomato
  • 4 thin slices red onion


  • This meatless burger made with Success® Brown Rice, mushrooms, cheddar cheese and BBQ sauce is the perfect treat for those following a vegetarian diet.

    Step 1

  • Prepare rice according to package directions. Preheat grill to medium-high heat, grease grates well.

    Step 2

  • Burgers: In large skillet set over medium-high heat, melt butter. Add onion, mushrooms and garlic and cook, stirring occasionally, for 8 to 10 minutes or until fragrant and tender. Stir in rice and breadcrumbs; set aside.

    Step 3

  • In food processor, combine egg, lentils, tomato paste, cumin, vinegar, tamari, chili powder and paprika until a paste forms. Season with salt and pepper. Transfer to medium bowl and combine with mushroom-rice mixture.

    Step 4

  • Divide into four portions. Shape into 1/2-inch-thick patties.

    Step 5

  • Grill patties, turning once, for 6 to 8 minutes or until char-marked and heated through. Top each with cheese slice and grill for 30 to 60 seconds or until melted.

    Step 6

  • Sauce: In small bowl, stir together mayonnaise, barbecue sauce, Dijon and pickles.

    Step 7

  • For serving: Serve patties in buns with sauce, arugula, tomato and onion.

    Recipe Tip

    Alternatively, in large cast-iron pan over medium-high heat, add 2 tbsp vegetable oil. Add patties and cook, turning once, for 6 to 8 minutes or until heated through.

How to Make Breadcrumbs

To make your own breadcrumbs at home you can tear up some slices of white bread into pieces and blend into crumbs using a food processor. 

For another recipe which uses breadcrumbs, check out this Rice Balls recipe.

What’s the Difference Between Canned Lentils and Dry?

The main difference between canned and dry lentils is that canned lentils come pre cooked meaning that minimal preparation is necessary before consuming them. 

Fans of lentils will also want to check out this Chicken and Lentils With Cashews recipe, this Red Lentil Sweet Potato Soup or this Thai Lentil and Rice Salad. 

What is Ground Cumin Used for?

Cumin is versatile spice, its warm, bittersweet flavor goes well with a wide variety of dishes, from curries and marinades to soups. 

Ground cumin is also often used in spice blends like curry powder and garam masala and can be used to enhance the flavor of meats as well as vegetables.

Dishes like this Cumin Rubbed Chicken With Artichoke Salsa, this Curried Baked Fish and this Whole Grain Spanish Rice rely heavily on the flavor of ground cumin. 

What is Balsamic Vinegar?

Balsamic vinegar is a sweet Italian vinegar made with trebbiano grapes. Unlike white vinegar, balsamic vinegar has a distinctive dark color. 

Similar to wine, the most prestigious varieties of balsamic vinegar are aged in barrels. Varieties of balsamic vinegar will often feature a leaf grading system which indicates its quality. 

For another recipe with balsamic vinegar, take a look at this Grilled Peach and Prosciutto Rice Pilaf.

Tamari Sauce Substitutions

If you don’t have any tamari sauce in the pantry you can simply use soy sauce as a substitution. Soy sauce has the same salty umami flavor as tamari sauce so you’ll barely  notice the difference. You can also make this substitution for other dishes that use Tamari sauce, like this Pulled Pork Power Slaw stir fry. Looking for a new dinner idea? Try our: how do you make Spanish rice?