Prepare all ingredients as described in the list above.

In a bowl, mix the ground beef with Worcestershire sauce, salt, and black pepper. Form into equal-sized burger patties.

Heat a grill or grill pan over medium heat. Grill each patty for about 3 minutes on one side, then flip and cook until the desired doneness is reached.

Place a slice of cheese on each patty and let it melt as the burger finishes cooking.

Toast the hamburger buns, cut side down, on the grill until golden brown.

In a small bowl, mix together the ketchup, mayonnaise, and mustard until combined. Set aside.

To assemble the burgers: Spread the sauce on the buns. Layer the bottom half of each bun with butter lettuce, tomato slices, a grilled beef patty, and red onion. Top with the remaining bun halves.

For the mango lassi: In a blender, combine frozen mango, yogurt, milk, cardamom, and sugar. Blend until smooth. Taste and adjust sweetness as desired.

Serve the grilled cheeseburgers with carrots and hummus on the side, and enjoy with a refreshing mango lassi.