Ingredients: ground beef, red onion, coriander, dijon mustard, gouda, bread, ketchup, cucumber, white wine vinegar, mustard seed, sugar, butter lettuce

Ingredients: ground beef, red onion, coriander, dijon mustard, bread, yogurt, gruyere, tomato sauce, cabbage, chutney, carrot, egg, mayonnaise, olive oil, arugula, onion

Ingredients: ground beef, red onion, coriander, dijon mustard, bread crumbs, lemon, balsamic vinegar, lettuce, chili paste, egg, mayonnaise, olive oil, button mushroom, tomato, oregano, quinoa, scallion

Ingredients: ground beef, red onion, coriander, dijon mustard, worcestershire, sharp cheddar, bread, tomato sauce, peppercorn, brown sugar, rice wine vinegar, extra virgin olive oil, smoked paprika, tomato paste, whisky, mustard seed, onion, sugar, garlic, baking soda