While the fish is cooking, pour 1 1/2 cup frozen peas in a small pan on the stove top. Warm the peas over medium high heat and add olive oil, the diced ginger, and mint. Once the pea mixture is warmed and combined, pour into a food processor, add the salt, and pulse until a thick puree forms. You may need to add a touch more olive oil or even water to thin it out if too thick.