What you need:
Smear peanut butter on the tortilla. Add honey. Sprinkle with a liberal amount of uncooked oatmeal. Roll up and enjoy!
You could probably add raisins, coconut, nuts, or whatever tickles your fancy. Personally, I find the original combination so good, I actually haven't experimented yet. Best of all, this is the only snack I can think of that actually satiates my appetite and doesn't leave me rummaging through the pantry again in ten minutes! Works for me!
P.S. For a really good homemade whole wheat tortilla recipe, look here. I substitute canola oil for the olive oil, because olive oil is too pungent for tortillas, in my humble opinion. :-) And I've found that cooking on an electric griddle works the best.
You can find other great tips at We Are THAT Family!