Is it possible to get sick if my outdoor cat (who eats mice) accidentally got saliva/nasal excretions in my food and i ate it? i noticed she was drooling after jumping on me, so some of the saliva may have gotten in my food. (is hantavirus possible?)

Yes possible: Maintain good hygiene , even if cat did not eat mice from the street , why do you allow saliva dribble into food ? Yes some viral infections possible . Take cat to vet and you see your doctor.

See below: Cats do have potential of carrying in illnesses if the animal they eat is ill. Also cats do put you at risk for different disease if their litter box is not cleaned regularly. So yes you must exercise care. If any suspicion of a substance going into your food. Don't eat it. Get a new clean bowl and start again. Of course you would develop symptoms and it does not sound like you have any

Hantavirus: There have been 43 cases of Hantavirus reported in Montana between 1993 (when surveilance began) and JAN 2017. Hantavirus is spread when we inhale virus-containing particles from rodent urine, droppings, or saliva. Since there are only 20 to 40 cases of Hantavirus reported in the US annually - the chances are low that this is Hantavirus.