Press the tofu for around 15 minutes to extract as much water as possible. You can use a tofu press or wrap the tofu in a clean towel and press it between 2 plates by securely placing something heavy on top. When done, cut the drained tofu into 1.5-cm / 1/2-inch dice.
In the meantime, start cooking the curry.
In a mixing bowl, stir together the Gochujang paste, tamari sauce, rice vinegar and brown sugar. Set aside
Cut the onion into small dice. Roughly chop the mushrooms.
Start cooking the rice.
Heat the coconut oil under medium heat in a large frying pan. Add the diced onion and fry until soft, about 5 minutes.
Add the mushrooms to the pan and fry for another 5 minutes.
Add the tofu and frozen peas. Mix in the Gochujang sauce and coconut milk. Stirring often, cook for a further 5 minutes until the peas are cooked.
Season to taste with a splash of lemon juice and some salt if needed.
Serve on rice, topped with a sprinkle of sliced spring onions and some chilli.