Personally, I believe that whole, natural food is better for us on a daily basis, not prepared meals or food in boxes. And there are so many frozen meals here, too, that you could probably eat a different meal each day for a month. I understand that for some people these ready-meals are convenient and time savers but the problem is with the ingredients. Looking at them listed on the boxes you'll see all sorts of fillers, taste enhancers, preservatives, sugar and salt. So, in order to avoid a lot of unnecessary additives, I suggest staying with unadulterated, fresh food. However, I do keep several bags of frozen vegetables in the freezer like broccoli, cauliflower, green beans and spinach but these are just vegetables with nothing else.
I used to bake bread years ago (before diabetes) and I can tell you that sugar makes yeast rise faster and that might be one reason to add sugar to bread aside from taste. And that's regular bread, not sweet rolls. Sweet dough used for dessert-type breads and rolls have sugar and maybe honey along with butter to soften the dough. So, all this plus the flour will raise our blood sugar extremely high.