There are three casserole dish shapes in Franciscan's Starburst line; each shape includes a dish and its lid. The largest dish holds 2 1/2 quarts. The next size down is the 1 1/2 quart dish. And the smallest casserole dish is an individual serving size.
From all that I have been able to find out, I think the two larger casserole dishes have the same appearance and starburst decoration. They differ only in size. The 2 1/2 quart dish is about 10 inches across, and the 1 1/2 quart dish is about 8 inches across.
The smallest, individual-size casserole dish is about 5 inches across with a similar shape to the other casserole dishes, though the decoration of starbursts will be different.