Boil your gnocchi for about 4 minutes. In a saucepan with a little olive oil or cooking spray whichever you prefer, add the mushroom, red onion and the sun-dried tomato. Add the grilled chicken. Sprinkle with salt and pepper. Once the gnocchi is cooked, drain and throw it in to the saucepan. Pour about 1/3 cup of Sun-dried tomato salad dressing in on top and stir. Remove from heat, plate and devour.