Add one tablespoon of olive oil (or coconut or vegetable oil) to a pan on medium heat.
Add the chopped onions and chopped garlic cloves to the pan, and cook until onions are golden brown
Add two teaspoons of red curry paste to the pan, along with the fish fillet slices
Close lid and cook on low heat for about 5 minutes until fish is halfway cooked
Add the chopped vegetables, coconut cream (half cup), a cup of water (or water up to level of vegetables in the pan)
Add one more teaspoon of red curry paste, salt and sugar. Adjust the salt to your taste. Close lid and cook on medium-high heat for about 10 minutes until carrots and potatoes are fully cooked.
Once the vegetables are cooked, turn off the heat and then add one tablespoon of lemon or lime juice. Enjoy!