Texas Toast style bread is simply an extra thick sliced white bread. If you can't find it in your regular grocery store, you should be able to buy it at your local Interstate Brands Bakery Outlet
(what I refer to as the Used Bread Store). Butternut, Holsum, Merita, and Wonder brands all have a Texas Toast variation.
In order to make decent French toast, like they do in restaurants, you need to soak the bread in the egg mixture on both sides, long enough for it to absorb all the way through the bread. Then transfer it to a very hot griddle with a spatula so you don't poke your fingers through the now egg-soggy bread. Keep it on the first side long enough to ensure a complete browning before flipping it to the second side. You never get a second chance to brown the first side!