Many of us use the IQF boneless-skinless for convenience, and it is really a chore to keep them from drying out. I never cook them in the oven, there is no way (for me) the middle will be cooked without the edges being jerkey. I agree with those who've said pound the middle, at least a little, and with high heat and a little olive oil.
Slice them and make either an Asian or Mediterranean stir fry. That way you quite literally put them in the skillet and take them out rather than serving them whole.
Slice them very thin and poach in low salt chicken broth and veggies, or if your family likes the exotic, broth and coconut milk with basil, lime, and peppers. herbs and spices are great antidotes for the no-salt-blues.
When I'm cooking anything out on the (charcoal) grill, when I take the meat and veggies (I always cook a bunch of onions, squash, etc when I'm doing ribs, steaks, or chops), I take whatever the IQF breasts I have in the freezer directly from the freezer, season them, throw them on the grill, and cover. We eat dinner and I go out and turn them. We clean up and I put them in foil and let them rest a bit. Into the fridge. I'm not sure why, but this leaves them very moist and succulent. I then use them in salads and various other preparations all week. I love grilled meat and it is nice to have some ready to go.
I recommend Cavender's Greek seasoning in the BLUE container (yellow has salt, blue is salt free) for a good general seasoning sans salt.