01 -
1 medium onion, cut into slices about 1/4-inch thick.
02 -
1 tablespoon butter, with extra if needed.
03 -
1/2 pound button mushrooms, trimmed and sliced.
04 -
1/4 pound shredded Monterey Jack cheese.
05 -
2 chicken breasts, large in size.
06 -
1 teaspoon salt blend or seasoned salt.
07 -
1/2 teaspoon ground black pepper.
08 -
Add extra salt if needed for taste.