In paper sack coat liver with flour, salt and pepper.
In 10-inch glass skillet microwave (high) bacon and onions 8-10 minutes, stirring once or twice until bacon is crisp.
With slotted spoon, remove onions and bacon.
Microwave (high), covered, 5-6 minutes, turning over and rotating dish 1/4 turn halfway through cooking.
Return onions and bacon to dish on top of liver.
Microwave (high), covered, 1-2 minutes more or until heated throughout.
Rest, covered, 5 minutes.