Preheat oven to 350°F. Start by mixing 2 cups of Bisquick and 1/2 cup of milk to make a firm dough. Roll the dough into an oval shape about a half a centimeter thick.
In a bowl mix the tuna, egg, half a bag of cheese, and parsley. Scoop the tuna onto the dough and spread it into a fist sized line across the middle of the oval (long-ways). Fold the dough over the tuna and shape it into a ring, closing the ends together. Starting about one inch from the middle of the ring, cut about every 2 inches to the outside. After the ring is cut, turn each cut piece alternating left and right (heart shapes).
Place in oven on cookie sheet for 45 min to an hour or until dough is cooked. While this is in the oven. Make the cheese sauce.
In a pan bring 2 cups of milk to a boil. Gradually pour in 1/2 cup of Bisquick and a whole bag of cheese. STIR STIR STIR until sauce is creamy. Serve Tuna Ring topped with the cheese sauce with your favorite veggies.