Place mint leaves, thyme, chopped parsley, minced garlic, lemon juice, and extra virgin olive oil in a blender then blend until incorporated.
Drizzle the spice mixture over the prawns then toss until the prawn is completely seasoned.
Preheat a grill over medium heat then wait until it is ready.
In the meantime, preheat a steamer and steam the carrot until tender. Set aside.
Once the grill is ready, place the prawns on it. Grill for a few minutes until the prawns are completely cooked and brush with the spices once in a while.
When the prawn is done, remove from grill and place on a serving dish.
Garnish with lettuce and steamed carrots then sprinkle grated cheddar cheese on top.