If the oven is big enough to hold a dutch oven, you can easily make excellent bread from scratch. Just google "no knead bread." We make it at home all the time, and it is easy and great. You mix the dough and a little yeast and let it sit for a day or two to develop the flavor. You can add in stuff like garlic and rosemary and olive slices, or else raisins and oats and cinnamon, or whatever.
Unfortunately, my trailer does not have an oven, so we have had to do without fresh-baked bread on our camping trips. Yes, I could make dutch oven bread over a campfire, but it's too much work for me!