What type of bread is best for a french toast bake?

Brioche bread or french bread is typical for a french toast bake to give it the most 'real' french toast like texture and taste. But ultimately any bread will work! Just know that the taste of the bread will shine through the bake, so pick one you like the taste of. If you are looking for higher fiber with still some of that white bread taste, I love using Dave's Killer white done right bread . If you are looking for lower calorie, try Sara Lee's 45-calorie bread .

Can I use all eggs instead of using both eggs and egg whites?

Yes. Just omit the egg whites and use 9 large eggs instead.

Can I use all egg whites instead of using both eggs and egg whites?

You can. I think you can taste the difference some (the result is a little more bread pudding like) but if you don't mind that then that would work fine! Just omit the eggs and use 2 cups egg whites.

Can I use something besides liquid stevia?

I highly recommend liquid stevia if you have it because it blends in so much better with the batter than granular and you only need a tiny bit of it! But you can also use any sweetener you have on hand if you need. You'll likely just need more to match the sweetness. Just give the batter a little taste before pouring it over the bread and make sure it's sweet enough for you!