Cut the pumpkin into a dice and steam cook. Rinse the quinoa, cook for 15 minutes, then rinse with cold water. Fry the pumpkin cubes in a pan with a little olive oil. In a large bowl, mix 2 tablespoons lemon juice, some olive oil, a little salt and honey, then add the quinoa, pumpkin and a diced tomato. Mix well and serve at room temperature.