Don't rush it! Recovering from any major surgery takes 3 months or more. With the "wrap" you can add "full" liquids (i.e. milk) after a few days to a week.
Soft foods a few days to a week later. Hold off on the beef for several weeks at least, but chicken and fish are considered soft foods. I'd take it easy on
anything you didn't tolerate before surgery. If you couldn't tolerate it before, you may not tolerate it ever. Food intolerances are not "cured" just by getting
your stomach tied in a knot.
Stay away from anything that causes gas - look up gassy foods. Your digestion will take weeks or months to normalize. Eat yogurt at least once a day.
Take a probiotic (good bacteria) to repopulate your gut. Avoid soluble fiber, artificial sweeteners, sugars of all types, complex carbohydrates. These
cause gas because the bacteria in the gut do eat them! This will help avoid gas and bloating.