By smoke detector standards, if you are making toast, you are burning something: bread.
This is why in residences, ionization smoke detectors (the cheapest kind to make) are not installed in kitchens. Similarly, photoelectric detectors are not installed in bathrooms (where fog from condensing water vapor triggers them).
Problem with detector in a RV is that everything is pretty much in the same room.
If the detector is too close to where you cook, replace it with a photoelectric, which detects smoke particles and fog. If that is the only detector, install an ionization detector in your sleeping area, assuming that is far enough away. Ionization detectors are preferred generally for earliest notification, as well as low cost and low maintenance.