Mustard chicken.

Turn on oven to 350.

Melt butter in pan.
Add onions --using your handy frozen chopped-up onions.
Count to 60.
Add boneless, skinless chicken thighs, salt and pepper, and parsley (optional).

Cook 5 minutes, turn and cook the other side 5 minutes.
Put in baking dish.
Smear mustard on top of each piece of meat.
Sprinkle with lemon juice.

Bake for half an hour or so. More won't hurt.

DONE!