It's got to feel good to be moving forward. I assume you've researched your surgeon and know that he/she is experienced with Nissen Fundoplication surgery, and has done many of them successfully. As you're read here, that's the most important piece of the puzzle.
Every surgeon has a different eating protocol, but mine had me in the hospital for one night. I was on liquids in the hospital, then switched to soft at home for the first five days. That was when I went to the surgeon for a recheck. He then put me on "any food that you can chew to a liquid", which gives a lot of leeway. I actually tried out a variety of foods before surgery, so I knew what I could handle. The big trick is to remember to take small bites and chew. It's challenging after a lifetime of chewing foods very little and swallowing it pretty much whole.
I had applesauce, mashed potatoes with gravy, squash, egg custard, and yogurt. Pureed cream soups are also good. I actually had more soft foods prepared than I actually needed. I still have applesauce, broth, and squash in my freezer!
You'll want to have liquid Motrin or Tylenol on hand, so you can switch to that once you don't need the prescribed pain meds. Don't take no for an answer when requesting liquid pain meds. You'll feel much more comfortable with then. You'll want to ask your doctor for anti nausea meds to have on hand, since the surgery makes it impossible or at least difficult to vomit, so if you're unlucky enough to get a stomach bug, you'll want to be prepared. People have done damage to their wraps as they tried to vomit. Also, buy some Gas-X for any bloating you may experience after surgery.
The recovery is so much easier than I ever thought it would be. The surgical pain was minimal, and the eating issues weren't as bad as some of the severe GERD/gastritis eating issues I'd already had. It was a very nice surprise. I've been very happy with the results. My asthma is so much improved...it's amazing. I wish I'd had the surgery YEARS ago. Unfortunately my last GI doc was very negative on the option (as well as other, newer procedures). Also, my research online actually scared me further. I wish I'd had the surgery sooner, because I could have avoided some pretty severe physical problems brought on by too many steroids used to keep me breathing while the acid and bile was refluxing into my lungs and inflaming them constantly.
Good luck with your surgery, Griffdawg! Be sure to post your questions and experiences here. There are lots of members who can give your advice and support. The experienced and positive members here helped me have the courage to move forward with the surgery. They gave me advice and suggestions, and supported and encouraged me all the way through.
We're here for you, too!
Take care and best wishes!