Preheat the oven to 425F (220C)
Put the serving dishes on a cookie sheet. Divide the olive oil between the 4 serving dishes. Sprinkle the garlic, paprika, chili flakes and parsley over the olive oil. (Save some of the parsley to garnish with.) Stir to combine with the olive oil.
Put the dishes into the oven for about 4-5 minutes, until the oil starts to bubble.
Take the dishes out of the oven and put 10 prawns in every dish. Turn them with a spoon a few times so they are coated with spices and oil. Return to the oven for 4-5 minutes until the oil is bubbling and the shrimps are just pink. Be careful not to overcook the prawns, it's best when they still have a "bite" to them.
Garnish with parsley and serve immediately (with hot crusty bread for the non low-carbers!)