Monks' Vegetarian Curry

In a wok or large deep skillet heat the oil over moderate heat until it is hot and in it stir-fry the curry paste for 2 minutes. Add the broccoli, the cauliflower, the bell pepper, and the carrot and stir-fry the mixture for 1 minute, or until the vegetables are coated well with the paste. Stir in the coconut milk, simmer the mixture, covered, stirring occasionally, for 6 to 10 minutes, or until the vegetables are just tender, and stir in the lemon juice and salt and pepper to taste. Mound the rice in 4 soup bowls, spoon the vegetarian curry over it, and sprinkle each serving with some of the coriander.