Add the chicken broth and 3/4 cup water and bring to a simmer. add the grnocchi, stir well, cover and ocok until the gnocchi is slightly tender, about 5 min remove from the heat. uncover and stir in the peas, cream, 1/4 tsp salt and 1/4 tsp pepper. Springle the cheese over the top and broil until golden and bubbly about 3 min serve.