Hehe, it looks like your rice had a tad more water than you needed

Are you using Japanese rice? Japanese rice is different from generic chinese/indian rice. Japanese rice is much shorter with a lot more substance and stickiness. A general rule is to use equal parts water to rice, but I would err on the side of caution and add a tiny bit more water. Too much will give you a porridge-like consistency (we actually eat a lot of such porridge).

P.S. Sushi is lovely, but I adore Korean Gimbap when I need something quick and easy to fill me up. GREAT for satiating hunger without overdoing the calories:
http://en.wikipedia.org/wiki/Gimbap