Place two room microphones in front of the stage.
Place the bass drum microphone just inside the bass drum shell, and the bass amp microphone just off the axis of one of the speakers.
Place your vocal microphone off-axis of one of the main PA speakers.
Place your mixing board out of the way, and plug in your microphone cables.
Zero out your channels and set your main faders to 0.
Tell the band to start playing.
Plug your earbuds into the board, and put on the earmuffs so you can hear only the sound from the mixing board.
Set the gain for the lead vocal where it is just activating the LED indicator, then roll off the gain enough so it isn't clipping (distorting).
Set the gain for the room microphones, then roll it off a little bit. Pan one of these left and the other right to get stereo separation.
Set the gain levels for the bass drum and the bass guitar, then roll them back slightly.
Raise the channel faders to near 0 and mix until you achieve the desired levels.
Set up your recording interface and your computer, then start the recording program.
Run lines from your mixing board to the inputs of your recording interface.
Set the levels on your recording interface and computer so they aren't clipping.
Run test recordings to tune the mix going into your computer.
Record the performance.
Set up your computer and run the audio feed to an amplifier and speakers.
Edit out any "dead air" between songs, and save the individual songs as audio files in your hard drive.
Apply any audio effects to the song files.
Convert your individual song files to a format that can be read by a CD player, and use your CD-burning software to burn the songs onto disc.