You can cook them together. The main ingredient tomatoes 1 kelp 50g auxiliary oil, the right amount of salt, the right amount of monosodium glutamate. Steps 1. Wash one tomato and cut it into pieces. 2. Put the oil in the pot, stir-fry the tomatoes. 3. Add the right amount of water and boil it over high fire. 4. Wash the kelp in advance and cut it into strips. 5. Pour the kelp into the pot, and turn it to low heat for about 10 minutes after boiling.