I had this problem once and the cause was a blocked trap. On matter what I did I could not clear it. Plunger, liquid plumber etc. Finally called a plumber and he took the trap apart and it was fine after that. He told me when using the disposal to put food down slowly wit a lot of running water especially with pasta as it will get stuck in the trap is you put to much down at one time.

Don't blame the disposal, my problem was pipes
 

The builder used these weird pipes on my kitchen sink. The design has a restriction that causes the clog to form. On the disposal, 1st picture. And on the second sink second and third picture. Only changing to a true 1.5" drain pipe will solve this problem.

easy trick- run a couple handfuls of ice cubes through the disposer

Never understood the need for a garbage disposal. I don't put anything into it. I just put everything in the trash.

Try a wet-dry vac in opposite sink. It will suck up what is in the trap and the disposal drain. Put baking soda and white vinegar down the disposal drain let it sit for a while and run warm water. Also, turn on the disposal, run warm water and fill the disposal with ice cubes. This will clean stuck on gunk on the blades.

Rinse your dishes well before putting them in the dishwasher.

Go into Home depot or Lowe's they have chemicals that can be used to restore your disposal unit and clean the drain it is call degreaser or citrissolve that cleanse the unit for drain as the last person recommend take the trap off and snake the drain. This recommendation comes from master trade specialist retired.

When my garbage disposal got clogged, I poured baking soda and vinegar into the sink. Worked great! Created a mini-volcano in the sink and cleared everything out.

Worked wonders
 

Recently my kitchen sink was plugged up. I did all the usual things used a church key etc. and even called the plumber. I then remembered how useful white vinegar is so I poured down the drain a lot of white vinegar and I also added baking soda it bubbled up like a science project and the drain was unclogged.
Needless to say I quickly cancelled the plumber.

Ohiobuckeye
 

Take the TRAP off first & check that first!

1. Google the manufacturer's manual for the disposal to find acceptable products. Liquid Plumber may not be recommended.

Since you don't seem to be inclined to do plumbing work, I recommend:

2. Dunstan and Sons Plumbing. Reasonable and dependable.

I replaced a disposal. Cumbersome but not difficult and definitely not rocket science.

Do not put pasta in the GB at anytime whatsoever. That stuff gums up like glue.

Baking soda and ice cubes with hot water.

NO! Please look on the bottle as yrs ago I was going to do that snd very happy I read the bottle. When you turn the disposal on again it will shoot out a little and could be hazardous to you

I agree with reading the bottle. But, the " Liquid-Plumr" website says the following:

CAN I USE THIS LIQUID-PLUMR® PRODUCT IN MY GARBAGE DISPOSAL?
Yes. This product is specifically designed for use in your garbage disposal. It is designed to clean the disposal and drain with the assistance of the agitation from the disposal, similar to how a washing machine works. Although it will not damage a sink without a disposal, it will not clean a sink without a disposal effectively.