Baked French Toast

I had all this bread leftover and just had to get rid of it... So bought some milk and eggs, looked up French toast recipes, and settled on this baked version, except I kept the toast whole as opposed to making them into small sticks. I completely left out the maple syrup, and used baking spray instead of butter. Conclusion? This thing is too sweet, even without the maple syrup! And also, I should have used butter because the baking spray totally does not contribute to the flavor =(. The toast came out pretty eggy and not soggy enough, in my opinion. Part of it may have been due to my using whole grain extra fiber bread, as opposed to the usual challah...