Most 2-quart casserole dishes are square and 8 inches wide, 8 inches long, and 2 inches deep on the inside, or they are round and 9 inches in diameter and 2 inches deep. For the outside measurements, an inch or more is added, depending on how big the rim and handles, if there are any, are.
For a recipe that calls for a 2-quart casserole, you can use a different shape by changing the cooking time and temperature. A baking pan that’s 11 inches by 7 inches by 1.5 inches and a loaf pan that’s 9 inches by 5 inches by 3 inches can also hold 2 quarts. The baking pan makes the filling less deep, so the baking time needs to be shortened and the oven temperature needs to be slightly raised. Since there is more filling in the loaf pan, the baking time needs to be longer and the temperature needs to be a little lower.
