My husband is in the same boat. This has been hard, because he is so food focused!
I cut processed foods. Too much salt, fat and refined carbs. Basically we buy foods in their most basic form and we eat two vegetarian meals a week. It involves more food prep and planning, but it has been worth it.
I'd like to encourage you though, it's hard at first. CRAVINGS!!! But it gets better and your preferences will change.
Peanut butter isn't bad, just limit yourself and there are better choices on the shelf, like natural peanut butter with no added sugars, oils and much less salt.
~230lbs. |--o-----------> 165 lbs.~
11 lbs down, 54 to go.