As far as the oven goes, the small size will cause this running hot issue. Most campers that use the oven a lot use a pizza stone under whatever they bake and then set the temp about 25 degrees lower. The stone helps even out the rise and fall of the temps as the burner goes on and off.
2012 Winnebago "Journey To Insanity" 40U
2008 Dakota Sport 4x4
2004 Subaru Baja - DW's
2006 Honda Shadow Aero - TOAD for now.