What is your go-to sequence vs a complete beginner in class, it could be someone who's been training for a few weeks but is still uncoordinated or flinches during sparring. Btw. i'm not talking about sandbagging white belts, more or less a larger white belt exploiting his size advantage.
Based on your answer, you're most likely to go with that set up in a self defense situation. 
Big slicing elbow
2 or 3 jabs. Depending on how they respond, a pivot out or 2-3-2. 
Let em throw work counters show them the reality of "swimming" punches and why defense is just as important as offense.
Pretty much let them hit me, while trying in various ways to encourage technique.
Spinning back fist followed by a throat punch is usually my go-to so they keep their chin down. If they drop, full mount followed by elbows.
I black out with rage and throw spinning shit
Hit em with the stone cold stunner. If they get up from that, they're game.
Ignore them, they are below me
Anyone who comes into my house looking to thump gets throwed down on no matter what. When people are done rolling with me they know I legit earned my blue belt.
UGCTT_Messiah - Anyone who comes into my house looking to thump gets throwed down on no matter what. When people are done rolling with me they know I legit earned my blue belt.
How else are fools going to know you've been there six weeks longer than they have?
Spazzes get the "slip everything, counter body" treatment.
Smash pass to twister. Ignore the tap. If their back gets fucked up they never shoulda been there to start with
Slip jab to the outside, counter cross as I step out, single motion. No beginner is prepared for that and it's so simple.
In BJJ, I'll just pull guard and gogoplata. I'm too flexible for a beginner.
1-2-low kick
2-3-2-liver kick
Also, 1-2-left hook to the body
The Micky Ward.
Jab, hook to the head, hook to the body.
I'll even slow down the head hook because I WANT their right hand to come up to block my hook, that way they obscure their town vision and never see the liver shot coming.
Someone else said the outside slip of the jab to a right hand. That's slick too.
Awesome posts from green namers, thanks, boys.
Awesome trollin from blues, UG never disappoints! Lol
Personally, I usually look for side control/back control, being an 160lb dude, heavyweights usually buck me off when I try to mount. With that said, 90% of the time I get to mount beginners will throw their hands up begging to be arm triangle'd, so I oblige.
In striking I usually approach boxing from my TKD background. Kinda darting in and out with jabs a la McgregorWonderboyMachida if I feel threatened by power. After 3-4 jabs, I set up a faint jab with a 2-1-2-3-leg kick or my favorite combo: faint/pump 2 then blast out a ead hook to liver then round house leg kick. Maximum torque through the combo
^i basically learned that combo from watching Jose Aldo, the Hook to liver then torque into leg kick. It's amazing if done properly. It chops the target down and limits their movement. However, I paid big every time my partners absorbed the the hook and checked the kick...
donkypunch55 - The Micky Ward.This.
Jab, hook to the head, hook to the body.
I'll even slow down the head hook because I WANT their right hand to come up to block my hook, that way they obscure their town vision and never see the liver shot coming.
Someone else said the outside slip of the jab to a right hand. That's slick too.
VU