WARNING: A buddy had one of his quests glitch to where he couldn't finish it. (The Quick and the Quickener) To avoid this, I recommend when you pick up a quest, complete it immediately instead of coming back later.
If one does glitch on you, jump in a friend's game and complete it with them, that worked for my friend.
There are 11 side missions in this DLC. All of them are completed in the areas in which you get them so no extra traveling required.
The Quick and the Quicker (available after several main missions)
Miracle Elixir Fixer
Money Back Guarantee
The Legend of McSmugger
Lost and Found
Of Blood and Beans
The Meatman Prophecy
The Dandy and Damsel